Comprehensive Pipefitter Assessment Psychometrics Analysis

Form 1 Analysis

Classical Test Theory Results

CTT Summary

Form1_CTT <- ctt_analysis(Form1)
Form1_problematic <- identify_problematic_items(Form1_CTT)

Form1_CTT %>%
  mutate(problematic = ifelse(item %in% Form1_problematic, "Yes", "No")) %>%
  select(item, mean, sd, problematic) %>%
  kable(caption = "Classical Test Theory Results for Form 1", digits = 3) %>%
  kable_styling(bootstrap_options = c("striped", "hover", "condensed", "responsive")) %>%
  row_spec(which(Form1_CTT$item %in% Form1_problematic), background = "yellow")

Classical Test Theory Results for Form 1

	item	mean	sd	problematic
ASMTEN00000102-090016	ASMTEN00000102-090016	0.834	0.372	No
ASMTEN00000102-090022-01	ASMTEN00000102-090022-01	0.810	0.393	No
ASMTEN00000102-090023-01	ASMTEN00000102-090023-01	0.991	0.093	Yes
ASMTEN00000102-090051	ASMTEN00000102-090051	0.536	0.499	No
ASMTEN00000102-090095-01	ASMTEN00000102-090095-01	0.968	0.175	Yes
ASMTEN00008102-060002	ASMTEN00008102-060002	0.842	0.365	No
ASMTEN00008102-060004	ASMTEN00008102-060004	0.474	0.500	No
ASMTEN00008102-060005	ASMTEN00008102-060005	0.909	0.288	Yes
ASMTEN00008102-060006	ASMTEN00008102-060006	0.626	0.484	No
ASMTEN00008103-060001	ASMTEN00008103-060001	0.559	0.497	No
ASMTEN00008103-060003	ASMTEN00008103-060003	0.993	0.080	Yes
ASMTEN00008103-060007	ASMTEN00008103-060007	0.989	0.104	Yes
ASMTEN00008103-060009	ASMTEN00008103-060009	0.894	0.308	Yes
ASMTEN00008104-060001	ASMTEN00008104-060001	0.514	0.500	No
ASMTEN00008104-060006	ASMTEN00008104-060006	0.657	0.475	No
ASMTEN00008104-060010	ASMTEN00008104-060010	0.956	0.205	Yes
ASMTEN00008104-060011	ASMTEN00008104-060011	0.997	0.054	Yes
ASMTEN00008105-060002	ASMTEN00008105-060002	0.634	0.482	No
ASMTEN00008105-060008	ASMTEN00008105-060008	0.289	0.453	Yes
ASMTEN00008105-060009	ASMTEN00008105-060009	0.823	0.382	No
ASMTEN00008105-060011	ASMTEN00008105-060011	0.305	0.461	Yes
ASMTEN00008106-060001	ASMTEN00008106-060001	0.983	0.130	Yes
ASMTEN00008106-060002	ASMTEN00008106-060002	0.957	0.202	Yes
ASMTEN00008106-060003	ASMTEN00008106-060003	0.985	0.122	Yes
ASMTEN00008106-060004	ASMTEN00008106-060004	0.967	0.179	Yes
ASMTEN00008201-060001	ASMTEN00008201-060001	0.574	0.495	No
ASMTEN00008201-060002	ASMTEN00008201-060002	0.633	0.482	No
ASMTEN00008201-060003	ASMTEN00008201-060003	0.863	0.344	No
ASMTEN00008202-060003	ASMTEN00008202-060003	0.532	0.499	No
ASMTEN00008202-060011	ASMTEN00008202-060011	0.673	0.469	No
ASMTEN00008202-060012	ASMTEN00008202-060012	0.807	0.395	No
ASMTEN00008202-060013	ASMTEN00008202-060013	0.711	0.453	No
ASMTEN00008202-060014	ASMTEN00008202-060014	0.928	0.259	Yes
ASMTEN00008202-060016	ASMTEN00008202-060016	0.935	0.247	Yes
ASMTEN00008202-060017	ASMTEN00008202-060017	0.693	0.461	No
ASMTEN00008202-060018	ASMTEN00008202-060018	0.575	0.495	No
ASMTEN00008203-060001	ASMTEN00008203-060001	0.505	0.500	No
ASMTEN00008203-060003	ASMTEN00008203-060003	0.728	0.445	No
ASMTEN00008203-060006	ASMTEN00008203-060006	0.826	0.379	No
ASMTEN00008203-060007	ASMTEN00008203-060007	0.791	0.407	No
ASMTEN00008203-060013	ASMTEN00008203-060013	0.611	0.488	No
ASMTEN00008204-060004	ASMTEN00008204-060004	0.394	0.489	Yes
ASMTEN00008204-060010	ASMTEN00008204-060010	0.618	0.486	No
ASMTEN00008205-060004	ASMTEN00008205-060004	0.951	0.216	Yes
ASMTEN00008205-060009	ASMTEN00008205-060009	0.493	0.500	No
ASMTEN00008205-060010	ASMTEN00008205-060010	0.855	0.352	No
ASMTEN00008205-060013	ASMTEN00008205-060013	0.588	0.492	No
ASMTEN00008205-060019	ASMTEN00008205-060019	0.757	0.429	No
ASMTEN00008205-060025	ASMTEN00008205-060025	0.880	0.325	No
ASMTEN00008206-060001	ASMTEN00008206-060001	0.749	0.434	No
ASMTEN00008206-060002	ASMTEN00008206-060002	0.585	0.493	No
ASMTEN00008206-060005	ASMTEN00008206-060005	0.980	0.138	Yes
ASMTEN00008206-060007	ASMTEN00008206-060007	0.538	0.499	No
ASMTEN00008206-060008	ASMTEN00008206-060008	0.828	0.378	No
ASMTEN00008207-060003	ASMTEN00008207-060003	0.915	0.279	Yes
ASMTEN00008207-060005	ASMTEN00008207-060005	0.779	0.415	No
ASMTEN00008207-060007	ASMTEN00008207-060007	0.581	0.494	No
ASMTEN00008207-060008	ASMTEN00008207-060008	0.559	0.497	No
ASMTEN00008207-060009	ASMTEN00008207-060009	0.781	0.414	No
ASMTEN00008207-060012	ASMTEN00008207-060012	0.497	0.500	No
ASMTEN00008208-060001	ASMTEN00008208-060001	0.620	0.486	No
ASMTEN00008208-060005	ASMTEN00008208-060005	0.531	0.499	No
ASMTEN00008208-060006	ASMTEN00008208-060006	0.900	0.301	Yes
ASMTEN00008209-060001	ASMTEN00008209-060001	0.509	0.500	No
ASMTEN00008209-060002	ASMTEN00008209-060002	0.686	0.464	No
ASMTEN00008209-060003	ASMTEN00008209-060003	0.872	0.335	No
ASMTEN00008209-060004	ASMTEN00008209-060004	0.802	0.398	No
ASMTEN00008209-060006	ASMTEN00008209-060006	0.594	0.491	No
ASMTEN00008301-070001	ASMTEN00008301-070001	0.626	0.484	No
ASMTEN00008301-070004	ASMTEN00008301-070004	0.942	0.235	Yes
ASMTEN00008301-070005	ASMTEN00008301-070005	0.660	0.474	No
ASMTEN00008301-070006	ASMTEN00008301-070006	0.578	0.494	No
ASMTEN00008301-070007	ASMTEN00008301-070007	0.507	0.500	No
ASMTEN00008302-070001	ASMTEN00008302-070001	0.432	0.496	No
ASMTEN00008302-070003	ASMTEN00008302-070003	0.392	0.488	Yes
ASMTEN00008302-070005	ASMTEN00008302-070005	0.882	0.323	No
ASMTEN00008302-070010	ASMTEN00008302-070010	0.871	0.336	No
ASMTEN00008303-070001	ASMTEN00008303-070001	0.736	0.441	No
ASMTEN00008303-070002	ASMTEN00008303-070002	0.530	0.499	No
ASMTEN00008303-070003	ASMTEN00008303-070003	0.885	0.320	No
ASMTEN00008303-070005	ASMTEN00008303-070005	0.306	0.461	Yes
ASMTEN00008303-070006	ASMTEN00008303-070006	0.621	0.485	No
ASMTEN00008304-070001	ASMTEN00008304-070001	0.752	0.432	No
ASMTEN00008304-070003	ASMTEN00008304-070003	0.488	0.500	No
ASMTEN00008304-070004	ASMTEN00008304-070004	0.412	0.492	No
ASMTEN00008304-070008	ASMTEN00008304-070008	0.451	0.498	No
ASMTEN00008304-070013	ASMTEN00008304-070013	0.562	0.496	No
ASMTEN00008306-070002	ASMTEN00008306-070002	0.929	0.258	Yes
ASMTEN00008306-070003	ASMTEN00008306-070003	0.965	0.183	Yes
ASMTEN00008306-070004	ASMTEN00008306-070004	0.654	0.476	No
ASMTEN00008306-070005	ASMTEN00008306-070005	0.737	0.441	No
ASMTEN00008306-070009	ASMTEN00008306-070009	0.635	0.482	No
ASMTEN00008307-070002	ASMTEN00008307-070002	0.620	0.486	No
ASMTEN00008307-070005	ASMTEN00008307-070005	0.813	0.390	No
ASMTEN00008307-070006	ASMTEN00008307-070006	0.392	0.488	Yes
ASMTEN00008307-070008	ASMTEN00008307-070008	0.959	0.199	Yes
ASMTEN00008308-070002	ASMTEN00008308-070002	0.650	0.477	No
ASMTEN00008308-070003	ASMTEN00008308-070003	0.985	0.122	Yes
ASMTEN00008308-070006	ASMTEN00008308-070006	0.565	0.496	No
ASMTEN00008308-070008	ASMTEN00008308-070008	0.781	0.413	No
ASMTEN00008308-070011	ASMTEN00008308-070011	0.768	0.422	No
ASMTEN00008308-070013	ASMTEN00008308-070013	0.384	0.486	Yes
ASMTEN00008309-070001	ASMTEN00008309-070001	0.818	0.386	No
ASMTEN00008309-070002	ASMTEN00008309-070002	0.469	0.499	No
ASMTEN00008309-070003	ASMTEN00008309-070003	0.482	0.500	No
ASMTEN00008401-070001	ASMTEN00008401-070001	0.605	0.489	No
ASMTEN00008401-070002	ASMTEN00008401-070002	0.888	0.316	No
ASMTEN00008401-070003	ASMTEN00008401-070003	0.582	0.493	No
ASMTEN00008401-070004	ASMTEN00008401-070004	0.941	0.236	Yes
ASMTEN00008402-070005	ASMTEN00008402-070005	0.504	0.500	No
ASMTEN00008402-070009-01	ASMTEN00008402-070009-01	0.454	0.498	No
ASMTEN00008402-070017	ASMTEN00008402-070017	0.402	0.490	Yes
ASMTEN00008402-070018-01	ASMTEN00008402-070018-01	0.869	0.337	No
ASMTEN00008403-070001	ASMTEN00008403-070001	0.317	0.465	Yes
ASMTEN00008403-070002	ASMTEN00008403-070002	0.216	0.411	Yes
ASMTEN00008403-070003	ASMTEN00008403-070003	0.296	0.457	Yes
ASMTEN00008403-070004	ASMTEN00008403-070004	0.877	0.329	No
ASMTEN00008405-070001	ASMTEN00008405-070001	0.925	0.264	Yes
ASMTEN00008405-070004	ASMTEN00008405-070004	0.879	0.326	No
ASMTEN00008405-070005	ASMTEN00008405-070005	0.879	0.326	No
ASMTEN00008405-070006	ASMTEN00008405-070006	0.665	0.472	No
ASMTEN00008406-070001	ASMTEN00008406-070001	0.841	0.366	No
ASMTEN00008406-070003	ASMTEN00008406-070003	0.356	0.479	Yes
ASMTEN00008406-070004	ASMTEN00008406-070004	0.764	0.425	No
ASMTEN00008406-070005	ASMTEN00008406-070005	0.426	0.495	No

Problematic Items

kable(data.frame(Problematic_Items = Form1_problematic),
      caption = "Problematic Items for Form 1") %>%
  kable_styling(bootstrap_options = c("striped", "hover", "condensed", "responsive"))

Problematic Items for Form 1

Problematic_Items
ASMTEN00000102-090023-01
ASMTEN00000102-090095-01
ASMTEN00008102-060005
ASMTEN00008103-060003
ASMTEN00008103-060007
ASMTEN00008103-060009
ASMTEN00008104-060010
ASMTEN00008104-060011
ASMTEN00008105-060008
ASMTEN00008105-060011
ASMTEN00008106-060001
ASMTEN00008106-060002
ASMTEN00008106-060003
ASMTEN00008106-060004
ASMTEN00008202-060014
ASMTEN00008202-060016
ASMTEN00008204-060004
ASMTEN00008205-060004
ASMTEN00008206-060005
ASMTEN00008207-060003
ASMTEN00008208-060006
ASMTEN00008301-070004
ASMTEN00008302-070003
ASMTEN00008303-070005
ASMTEN00008306-070002
ASMTEN00008306-070003
ASMTEN00008307-070006
ASMTEN00008307-070008
ASMTEN00008308-070003
ASMTEN00008308-070013
ASMTEN00008401-070004
ASMTEN00008402-070017
ASMTEN00008403-070001
ASMTEN00008403-070002
ASMTEN00008403-070003
ASMTEN00008405-070001
ASMTEN00008406-070003

Item Response Theory Results

Test Information Curve

Form1_clean <- remove_problematic_items(Form1, Form1_problematic)
Form1_IRT <- mirt(Form1_clean, 1, itemtype = "2PL")

## 
Iteration: 1, Log-Lik: -69729.645, Max-Change: 1.06783
Iteration: 2, Log-Lik: -68632.223, Max-Change: 0.42755
Iteration: 3, Log-Lik: -68303.653, Max-Change: 0.32795
Iteration: 4, Log-Lik: -68149.162, Max-Change: 0.16023
Iteration: 5, Log-Lik: -68079.262, Max-Change: 0.16607
Iteration: 6, Log-Lik: -68054.782, Max-Change: 0.09538
Iteration: 7, Log-Lik: -68043.719, Max-Change: 0.07420
Iteration: 8, Log-Lik: -68038.319, Max-Change: 0.05247
Iteration: 9, Log-Lik: -68035.513, Max-Change: 0.03963
Iteration: 10, Log-Lik: -68032.120, Max-Change: 0.01507
Iteration: 11, Log-Lik: -68031.840, Max-Change: 0.01401
Iteration: 12, Log-Lik: -68031.676, Max-Change: 0.00985
Iteration: 13, Log-Lik: -68031.514, Max-Change: 0.00721
Iteration: 14, Log-Lik: -68031.439, Max-Change: 0.00586
Iteration: 15, Log-Lik: -68031.409, Max-Change: 0.00397
Iteration: 16, Log-Lik: -68031.364, Max-Change: 0.00371
Iteration: 17, Log-Lik: -68031.353, Max-Change: 0.00179
Iteration: 18, Log-Lik: -68031.349, Max-Change: 0.00335
Iteration: 19, Log-Lik: -68031.344, Max-Change: 0.00168
Iteration: 20, Log-Lik: -68031.342, Max-Change: 0.00200
Iteration: 21, Log-Lik: -68031.342, Max-Change: 0.00093
Iteration: 22, Log-Lik: -68031.340, Max-Change: 0.00044
Iteration: 23, Log-Lik: -68031.340, Max-Change: 0.00114
Iteration: 24, Log-Lik: -68031.339, Max-Change: 0.00030
Iteration: 25, Log-Lik: -68031.339, Max-Change: 0.00131
Iteration: 26, Log-Lik: -68031.339, Max-Change: 0.00045
Iteration: 27, Log-Lik: -68031.339, Max-Change: 0.00108
Iteration: 28, Log-Lik: -68031.339, Max-Change: 0.00061
Iteration: 29, Log-Lik: -68031.338, Max-Change: 0.00028
Iteration: 30, Log-Lik: -68031.338, Max-Change: 0.00064
Iteration: 31, Log-Lik: -68031.338, Max-Change: 0.00037
Iteration: 32, Log-Lik: -68031.337, Max-Change: 0.00018
Iteration: 33, Log-Lik: -68031.337, Max-Change: 0.00046
Iteration: 34, Log-Lik: -68031.337, Max-Change: 0.00021
Iteration: 35, Log-Lik: -68031.337, Max-Change: 0.00049
Iteration: 36, Log-Lik: -68031.337, Max-Change: 0.00016
Iteration: 37, Log-Lik: -68031.337, Max-Change: 0.00014
Iteration: 38, Log-Lik: -68031.337, Max-Change: 0.00037
Iteration: 39, Log-Lik: -68031.337, Max-Change: 0.00056
Iteration: 40, Log-Lik: -68031.337, Max-Change: 0.00012
Iteration: 41, Log-Lik: -68031.337, Max-Change: 0.00026
Iteration: 42, Log-Lik: -68031.337, Max-Change: 0.00045
Iteration: 43, Log-Lik: -68031.337, Max-Change: 0.00010

plot(Form1_IRT, type = "info", main = "Test Information Curve for Form 1")

Item Parameters

Form1_Params <- get_item_params(Form1_IRT)
kable(Form1_Params, caption = "Item Parameters for Form 1", digits = 3) %>%
  kable_styling(bootstrap_options = c("striped", "hover", "condensed", "responsive"))

Item Parameters for Form 1

	item	items.a	items.b	items.g	items.u
ASMTEN00000102-090016	ASMTEN00000102-090016	0.710	-2.476	0	1
ASMTEN00000102-090022-01	ASMTEN00000102-090022-01	-0.441	3.412	0	1
ASMTEN00000102-090051	ASMTEN00000102-090051	-0.185	0.790	0	1
ASMTEN00008102-060002	ASMTEN00008102-060002	1.288	-1.611	0	1
ASMTEN00008102-060004	ASMTEN00008102-060004	0.621	0.149	0	1
ASMTEN00008102-060006	ASMTEN00008102-060006	0.172	-3.021	0	1
ASMTEN00008103-060001	ASMTEN00008103-060001	-1.026	0.207	0	1
ASMTEN00008104-060001	ASMTEN00008104-060001	0.748	-0.126	0	1
ASMTEN00008104-060006	ASMTEN00008104-060006	0.580	-1.220	0	1
ASMTEN00008105-060002	ASMTEN00008105-060002	0.497	-1.179	0	1
ASMTEN00008105-060009	ASMTEN00008105-060009	1.165	-1.596	0	1
ASMTEN00008201-060001	ASMTEN00008201-060001	1.029	-0.406	0	1
ASMTEN00008201-060002	ASMTEN00008201-060002	1.222	-0.615	0	1
ASMTEN00008201-060003	ASMTEN00008201-060003	1.253	-1.786	0	1
ASMTEN00008202-060003	ASMTEN00008202-060003	1.890	-0.205	0	1
ASMTEN00008202-060011	ASMTEN00008202-060011	0.619	-1.281	0	1
ASMTEN00008202-060012	ASMTEN00008202-060012	0.710	-2.202	0	1
ASMTEN00008202-060013	ASMTEN00008202-060013	-0.456	2.049	0	1
ASMTEN00008202-060017	ASMTEN00008202-060017	1.362	-0.822	0	1
ASMTEN00008202-060018	ASMTEN00008202-060018	-0.083	3.662	0	1
ASMTEN00008203-060001	ASMTEN00008203-060001	0.431	-0.068	0	1
ASMTEN00008203-060003	ASMTEN00008203-060003	0.544	-1.931	0	1
ASMTEN00008203-060006	ASMTEN00008203-060006	0.337	-4.722	0	1
ASMTEN00008203-060007	ASMTEN00008203-060007	0.534	-2.637	0	1
ASMTEN00008203-060013	ASMTEN00008203-060013	-0.390	1.185	0	1
ASMTEN00008204-060010	ASMTEN00008204-060010	1.599	-0.492	0	1
ASMTEN00008205-060009	ASMTEN00008205-060009	0.512	0.035	0	1
ASMTEN00008205-060010	ASMTEN00008205-060010	0.638	-2.973	0	1
ASMTEN00008205-060013	ASMTEN00008205-060013	0.158	-2.259	0	1
ASMTEN00008205-060019	ASMTEN00008205-060019	-0.386	3.039	0	1
ASMTEN00008205-060025	ASMTEN00008205-060025	1.661	-1.594	0	1
ASMTEN00008206-060001	ASMTEN00008206-060001	0.675	-1.776	0	1
ASMTEN00008206-060002	ASMTEN00008206-060002	-0.570	0.618	0	1
ASMTEN00008206-060007	ASMTEN00008206-060007	0.680	-0.286	0	1
ASMTEN00008206-060008	ASMTEN00008206-060008	1.579	-1.337	0	1
ASMTEN00008207-060005	ASMTEN00008207-060005	1.418	-1.180	0	1
ASMTEN00008207-060007	ASMTEN00008207-060007	0.817	-0.493	0	1
ASMTEN00008207-060008	ASMTEN00008207-060008	0.235	-1.025	0	1
ASMTEN00008207-060009	ASMTEN00008207-060009	1.054	-1.440	0	1
ASMTEN00008207-060012	ASMTEN00008207-060012	0.767	-0.032	0	1
ASMTEN00008208-060001	ASMTEN00008208-060001	0.741	-0.768	0	1
ASMTEN00008208-060005	ASMTEN00008208-060005	1.541	-0.203	0	1
ASMTEN00008209-060001	ASMTEN00008209-060001	-0.309	0.115	0	1
ASMTEN00008209-060002	ASMTEN00008209-060002	0.039	-19.907	0	1
ASMTEN00008209-060003	ASMTEN00008209-060003	1.726	-1.507	0	1
ASMTEN00008209-060004	ASMTEN00008209-060004	1.484	-1.257	0	1
ASMTEN00008209-060006	ASMTEN00008209-060006	2.293	-0.375	0	1
ASMTEN00008301-070001	ASMTEN00008301-070001	0.647	-0.893	0	1
ASMTEN00008301-070005	ASMTEN00008301-070005	0.671	-1.106	0	1
ASMTEN00008301-070006	ASMTEN00008301-070006	2.128	-0.336	0	1
ASMTEN00008301-070007	ASMTEN00008301-070007	-0.254	0.109	0	1
ASMTEN00008302-070001	ASMTEN00008302-070001	-0.179	-1.538	0	1
ASMTEN00008302-070005	ASMTEN00008302-070005	0.890	-2.515	0	1
ASMTEN00008302-070010	ASMTEN00008302-070010	0.666	-3.067	0	1
ASMTEN00008303-070001	ASMTEN00008303-070001	0.263	-3.956	0	1
ASMTEN00008303-070002	ASMTEN00008303-070002	1.118	-0.198	0	1
ASMTEN00008303-070003	ASMTEN00008303-070003	0.971	-2.377	0	1
ASMTEN00008303-070006	ASMTEN00008303-070006	-0.065	7.617	0	1
ASMTEN00008304-070001	ASMTEN00008304-070001	1.086	-1.247	0	1
ASMTEN00008304-070003	ASMTEN00008304-070003	0.842	0.012	0	1
ASMTEN00008304-070004	ASMTEN00008304-070004	0.568	0.638	0	1
ASMTEN00008304-070008	ASMTEN00008304-070008	0.342	0.581	0	1
ASMTEN00008304-070013	ASMTEN00008304-070013	0.647	-0.454	0	1
ASMTEN00008306-070004	ASMTEN00008306-070004	0.989	-0.801	0	1
ASMTEN00008306-070005	ASMTEN00008306-070005	0.583	-1.896	0	1
ASMTEN00008306-070009	ASMTEN00008306-070009	1.331	-0.596	0	1
ASMTEN00008307-070002	ASMTEN00008307-070002	-0.787	0.652	0	1
ASMTEN00008307-070005	ASMTEN00008307-070005	-0.610	2.588	0	1
ASMTEN00008308-070002	ASMTEN00008308-070002	1.749	-0.581	0	1
ASMTEN00008308-070006	ASMTEN00008308-070006	0.072	-3.636	0	1
ASMTEN00008308-070008	ASMTEN00008308-070008	1.383	-1.206	0	1
ASMTEN00008308-070011	ASMTEN00008308-070011	0.605	-2.127	0	1
ASMTEN00008309-070001	ASMTEN00008309-070001	1.129	-1.601	0	1
ASMTEN00008309-070002	ASMTEN00008309-070002	1.531	0.014	0	1
ASMTEN00008309-070003	ASMTEN00008309-070003	0.679	0.077	0	1
ASMTEN00008401-070001	ASMTEN00008401-070001	0.822	-0.629	0	1
ASMTEN00008401-070002	ASMTEN00008401-070002	0.718	-3.107	0	1
ASMTEN00008401-070003	ASMTEN00008401-070003	0.165	-2.031	0	1
ASMTEN00008402-070005	ASMTEN00008402-070005	0.711	-0.063	0	1
ASMTEN00008402-070009-01	ASMTEN00008402-070009-01	-0.404	-0.486	0	1
ASMTEN00008402-070018-01	ASMTEN00008402-070018-01	0.487	-4.046	0	1
ASMTEN00008403-070004	ASMTEN00008403-070004	1.091	-2.095	0	1
ASMTEN00008405-070004	ASMTEN00008405-070004	0.877	-2.522	0	1
ASMTEN00008405-070005	ASMTEN00008405-070005	0.894	-2.481	0	1
ASMTEN00008405-070006	ASMTEN00008405-070006	0.674	-1.139	0	1
ASMTEN00008406-070001	ASMTEN00008406-070001	1.686	-1.352	0	1
ASMTEN00008406-070004	ASMTEN00008406-070004	1.361	-1.134	0	1
ASMTEN00008406-070005	ASMTEN00008406-070005	0.681	0.438	0	1

Response Frequencies

Form1_freq <- calculate_frequencies_wide(Form1_respcode)
kable(Form1_freq, caption = "Response Frequencies for Form 1") %>%
  kable_styling(bootstrap_options = c("striped", "hover", "condensed", "responsive"))

Response Frequencies for Form 1

Item	Response_1	Response_2	Response_3	Response_4	Response_5	Response_6	Response_7	Response_8
Response 1	54	50	1117	117	0	0	0	0
Response 10	749	124	426	39	0	0	0	0
Response 100	1045	30	138	125	0	0	0	0
Response 101	1028	85	87	138	0	0	0	0
Response 102	329	356	134	519	0	0	0	0
Response 103	60	75	111	1092	0	0	0	0
Response 104	269	58	629	382	0	0	0	0
Response 105	645	85	481	127	0	0	0	0
Response 106	80	806	132	320	0	0	0	0
Response 107	22	100	25	1191	0	0	0	0
Response 108	151	251	779	157	0	0	0	0
Response 109	32	1258	13	35	0	0	0	0
Response 11	3	1329	4	2	0	0	0	0
Response 110	30	677	406	225	0	0	0	0
Response 111	500	81	153	604	0	0	0	0
Response 112	184	535	199	420	0	0	0	0
Response 113	85	1164	75	14	0	0	0	0
Response 114	170	379	364	425	0	0	0	0
Response 115	87	203	765	283	0	0	0	0
Response 116	76	397	570	295	0	0	0	0
Response 117	71	80	1172	15	0	0	0	0
Response 118	12	50	1238	38	0	0	0	0
Response 119	37	47	77	1177	0	0	0	0
Response 12	2	10	1325	1	0	0	0	0
Response 120	74	19	68	1177	0	0	0	0
Response 121	173	201	72	892	0	0	0	0
Response 122	88	49	1122	79	0	0	0	0
Response 123	242	446	171	479	0	0	0	0
Response 124	70	60	1020	188	0	0	0	0
Response 125	347	66	577	348	0	0	0	0
Response 13	1194	108	5	31	0	0	0	0
Response 14	410	187	690	51	0	0	0	0
Response 15	884	158	196	100	0	0	0	0
Response 16	10	47	2	1279	0	0	0	0
Response 17	1335	2	1	0	0	0	0	0
Response 18	49	24	410	855	0	0	0	0
Response 19	17	470	468	383	0	0	0	0
Response 2	67	75	1085	111	0	0	0	0
Response 20	58	172	1097	11	0	0	0	0
Response 21	13	408	457	460	0	0	0	0
Response 22	2	9	1317	10	0	0	0	0
Response 23	1283	30	18	7	0	0	0	0
Response 24	1320	13	5	0	0	0	0	0
Response 25	1295	20	5	18	0	0	0	0
Response 26	37	457	771	73	0	0	0	0
Response 27	335	57	97	849	0	0	0	0
Response 28	1152	29	39	118	0	0	0	0
Response 29	88	712	254	284	0	0	0	0
Response 3	5	3	4	1326	0	0	0	0
Response 30	898	9	415	16	0	0	0	0
Response 31	15	215	1079	29	0	0	0	0
Response 32	170	156	949	63	0	0	0	0
Response 33	1244	19	51	24	0	0	0	0
Response 34	1252	3	74	9	0	0	0	0
Response 35	920	64	228	126	0	0	0	0
Response 36	762	242	179	155	0	0	0	0
Response 37	203	187	674	274	0	0	0	0
Response 38	973	74	140	151	0	0	0	0
Response 39	6	1104	10	218	0	0	0	0
Response 4	710	246	209	173	0	0	0	0
Response 40	43	166	1061	68	0	0	0	0
Response 41	817	283	110	128	0	0	0	0
Response 42	123	31	303	66	450	82	198	85
Response 43	32	85	821	400	0	0	0	0
Response 44	1268	20	31	19	0	0	0	0
Response 45	658	555	66	59	0	0	0	0
Response 46	85	50	1145	58	0	0	0	0
Response 47	19	74	458	787	0	0	0	0
Response 48	91	73	99	162	58	855	0	0
Response 49	36	1180	32	90	0	0	0	0
Response 5	1296	15	10	17	0	0	0	0
Response 50	78	1002	77	181	0	0	0	0
Response 51	133	72	781	352	0	0	0	0
Response 52	3	19	4	1312	0	0	0	0
Response 53	131	210	718	279	0	0	0	0
Response 54	141	39	52	1106	0	0	0	0
Response 55	1225	45	21	47	0	0	0	0
Response 56	69	111	1042	116	0	0	0	0
Response 57	775	241	186	136	0	0	0	0
Response 58	262	751	131	194	0	0	0	0
Response 59	45	93	1050	150	0	0	0	0
Response 6	167	20	28	1123	0	0	0	0
Response 60	160	668	460	50	0	0	0	0
Response 61	148	162	192	836	0	0	0	0
Response 62	705	372	37	224	0	0	0	0
Response 63	1204	75	21	38	0	0	0	0
Response 64	209	58	682	389	0	0	0	0
Response 65	273	915	55	95	0	0	0	0
Response 66	1168	29	65	76	0	0	0	0
Response 67	1076	67	26	169	0	0	0	0
Response 68	227	53	797	261	0	0	0	0
Response 69	126	63	839	310	0	0	0	0
Response 7	157	634	117	430	0	0	0	0
Response 70	1	1264	67	6	0	0	0	0
Response 71	100	59	292	887	0	0	0	0
Response 72	174	304	87	773	0	0	0	0
Response 73	154	369	136	679	0	0	0	0
Response 74	288	130	344	576	0	0	0	0
Response 75	191	539	528	80	0	0	0	0
Response 76	1180	41	70	47	0	0	0	0
Response 77	124	15	1168	31	0	0	0	0
Response 78	996	285	46	11	0	0	0	0
Response 79	80	497	715	46	0	0	0	0
Response 8	23	79	24	1212	0	0	0	0
Response 80	62	72	1181	23	0	0	0	0
Response 81	746	163	15	414	0	0	0	0
Response 82	169	258	79	832	0	0	0	0
Response 83	146	1014	147	31	0	0	0	0
Response 84	72	369	666	231	0	0	0	0
Response 85	164	549	383	242	0	0	0	0
Response 86	50	123	557	608	0	0	0	0
Response 87	310	73	20	84	12	162	677	0
Response 88	1241	6	83	8	0	0	0	0
Response 89	6	17	22	1293	0	0	0	0
Response 9	840	51	57	390	0	0	0	0
Response 90	186	881	193	78	0	0	0	0
Response 91	993	146	36	163	0	0	0	0
Response 92	162	847	218	111	0	0	0	0
Response 93	32	57	831	418	0	0	0	0
Response 94	28	84	138	1088	0	0	0	0
Response 95	306	519	281	232	0	0	0	0
Response 96	2	1285	13	38	0	0	0	0
Response 97	178	236	873	51	0	0	0	0
Response 98	1320	4	12	2	0	0	0	0
Response 99	754	282	143	159	0	0	0	0

Form 2 Analysis

Classical Test Theory Results

CTT Summary

Form2_CTT <- ctt_analysis(Form2)
Form2_problematic <- identify_problematic_items(Form2_CTT)

Form2_CTT %>%
  mutate(problematic = ifelse(item %in% Form2_problematic, "Yes", "No")) %>%
  select(item, mean, sd, problematic) %>%
  kable(caption = "Classical Test Theory Results for Form 2", digits = 3) %>%
  kable_styling(bootstrap_options = c("striped", "hover", "condensed", "responsive")) %>%
  row_spec(which(Form2_CTT$item %in% Form2_problematic), background = "yellow")

Classical Test Theory Results for Form 2

	item	mean	sd	problematic
ASMTEN00000102-090019-01	ASMTEN00000102-090019-01	0.987	0.115	Yes
ASMTEN00000102-090022-01	ASMTEN00000102-090022-01	0.822	0.383	No
ASMTEN00000102-090023-01	ASMTEN00000102-090023-01	0.986	0.118	Yes
ASMTEN00000102-090025-03	ASMTEN00000102-090025-03	0.926	0.261	Yes
ASMTEN00000102-090095-01	ASMTEN00000102-090095-01	0.965	0.183	Yes
ASMTEN00008102-060002	ASMTEN00008102-060002	0.854	0.353	No
ASMTEN00008102-060003	ASMTEN00008102-060003	0.756	0.429	No
ASMTEN00008102-060008	ASMTEN00008102-060008	0.767	0.423	No
ASMTEN00008102-060009	ASMTEN00008102-060009	0.847	0.360	No
ASMTEN00008103-060001	ASMTEN00008103-060001	0.556	0.497	No
ASMTEN00008103-060002	ASMTEN00008103-060002	0.496	0.500	No
ASMTEN00008103-060003	ASMTEN00008103-060003	0.997	0.054	Yes
ASMTEN00008103-060004	ASMTEN00008103-060004	0.798	0.401	No
ASMTEN00008103-060006	ASMTEN00008103-060006	0.774	0.419	No
ASMTEN00008104-060002	ASMTEN00008104-060002	0.579	0.494	No
ASMTEN00008104-060005	ASMTEN00008104-060005	0.542	0.498	No
ASMTEN00008104-060009	ASMTEN00008104-060009	0.970	0.172	Yes
ASMTEN00008104-060011	ASMTEN00008104-060011	0.996	0.066	Yes
ASMTEN00008105-060004	ASMTEN00008105-060004	0.951	0.217	Yes
ASMTEN00008105-060009	ASMTEN00008105-060009	0.785	0.411	No
ASMTEN00008105-060010	ASMTEN00008105-060010	0.903	0.296	Yes
ASMTEN00008105-060011	ASMTEN00008105-060011	0.271	0.445	Yes
ASMTEN00008106-060001	ASMTEN00008106-060001	0.982	0.135	Yes
ASMTEN00008106-060002	ASMTEN00008106-060002	0.947	0.224	Yes
ASMTEN00008106-060003	ASMTEN00008106-060003	0.980	0.140	Yes
ASMTEN00008106-060004	ASMTEN00008106-060004	0.959	0.197	Yes
ASMTEN00008201-060001	ASMTEN00008201-060001	0.587	0.493	No
ASMTEN00008201-060002	ASMTEN00008201-060002	0.617	0.486	No
ASMTEN00008202-060003	ASMTEN00008202-060003	0.541	0.499	No
ASMTEN00008202-060009	ASMTEN00008202-060009	0.606	0.489	No
ASMTEN00008202-060011	ASMTEN00008202-060011	0.674	0.469	No
ASMTEN00008202-060012	ASMTEN00008202-060012	0.817	0.387	No
ASMTEN00008202-060014	ASMTEN00008202-060014	0.919	0.273	Yes
ASMTEN00008202-060015	ASMTEN00008202-060015	0.722	0.448	No
ASMTEN00008202-060016	ASMTEN00008202-060016	0.926	0.263	Yes
ASMTEN00008203-060001	ASMTEN00008203-060001	0.445	0.497	No
ASMTEN00008203-060002	ASMTEN00008203-060002	0.611	0.488	No
ASMTEN00008203-060005	ASMTEN00008203-060005	0.497	0.500	No
ASMTEN00008203-060006	ASMTEN00008203-060006	0.855	0.352	No
ASMTEN00008203-060013	ASMTEN00008203-060013	0.601	0.490	No
ASMTEN00008204-060001	ASMTEN00008204-060001	0.635	0.482	No
ASMTEN00008204-060007	ASMTEN00008204-060007	0.662	0.473	No
ASMTEN00008204-060010	ASMTEN00008204-060010	0.626	0.484	No
ASMTEN00008204-060011	ASMTEN00008204-060011	0.652	0.477	No
ASMTEN00008205-060009	ASMTEN00008205-060009	0.504	0.500	No
ASMTEN00008205-060010	ASMTEN00008205-060010	0.862	0.345	No
ASMTEN00008205-060013	ASMTEN00008205-060013	0.589	0.492	No
ASMTEN00008205-060014	ASMTEN00008205-060014	0.302	0.459	Yes
ASMTEN00008205-060025	ASMTEN00008205-060025	0.880	0.325	No
ASMTEN00008206-060003	ASMTEN00008206-060003	0.668	0.471	No
ASMTEN00008206-060004	ASMTEN00008206-060004	0.868	0.338	No
ASMTEN00008206-060005	ASMTEN00008206-060005	0.971	0.167	Yes
ASMTEN00008206-060006	ASMTEN00008206-060006	0.654	0.476	No
ASMTEN00008206-060007	ASMTEN00008206-060007	0.541	0.499	No
ASMTEN00008206-060008	ASMTEN00008206-060008	0.826	0.380	No
ASMTEN00008207-060004	ASMTEN00008207-060004	0.475	0.500	No
ASMTEN00008207-060005	ASMTEN00008207-060005	0.740	0.439	No
ASMTEN00008207-060006	ASMTEN00008207-060006	0.618	0.486	No
ASMTEN00008207-060007	ASMTEN00008207-060007	0.541	0.498	No
ASMTEN00008207-060010	ASMTEN00008207-060010	0.862	0.345	No
ASMTEN00008207-060012	ASMTEN00008207-060012	0.487	0.500	No
ASMTEN00008208-060002	ASMTEN00008208-060002	0.646	0.478	No
ASMTEN00008208-060003	ASMTEN00008208-060003	0.703	0.457	No
ASMTEN00008208-060005	ASMTEN00008208-060005	0.533	0.499	No
ASMTEN00008209-060002	ASMTEN00008209-060002	0.673	0.469	No
ASMTEN00008209-060003	ASMTEN00008209-060003	0.866	0.341	No
ASMTEN00008209-060004	ASMTEN00008209-060004	0.791	0.407	No
ASMTEN00008209-060005	ASMTEN00008209-060005	0.583	0.493	No
ASMTEN00008209-060006	ASMTEN00008209-060006	0.589	0.492	No
ASMTEN00008301-070001	ASMTEN00008301-070001	0.601	0.490	No
ASMTEN00008301-070002	ASMTEN00008301-070002	0.475	0.500	No
ASMTEN00008301-070003	ASMTEN00008301-070003	0.752	0.432	No
ASMTEN00008301-070005	ASMTEN00008301-070005	0.649	0.477	No
ASMTEN00008301-070006	ASMTEN00008301-070006	0.566	0.496	No
ASMTEN00008302-070007	ASMTEN00008302-070007	0.684	0.465	No
ASMTEN00008302-070009	ASMTEN00008302-070009	0.508	0.500	No
ASMTEN00008302-070015	ASMTEN00008302-070015	0.590	0.492	No
ASMTEN00008303-070002	ASMTEN00008303-070002	0.509	0.500	No
ASMTEN00008303-070003	ASMTEN00008303-070003	0.847	0.360	No
ASMTEN00008303-070004	ASMTEN00008303-070004	0.492	0.500	No
ASMTEN00008303-070005	ASMTEN00008303-070005	0.291	0.455	Yes
ASMTEN00008303-070006	ASMTEN00008303-070006	0.623	0.485	No
ASMTEN00008303-070009	ASMTEN00008303-070009	0.956	0.204	Yes
ASMTEN00008304-070001	ASMTEN00008304-070001	0.737	0.440	No
ASMTEN00008304-070004	ASMTEN00008304-070004	0.463	0.499	No
ASMTEN00008304-070006	ASMTEN00008304-070006	0.603	0.489	No
ASMTEN00008304-070007	ASMTEN00008304-070007	0.599	0.490	No
ASMTEN00008306-070002	ASMTEN00008306-070002	0.926	0.263	Yes
ASMTEN00008306-070003	ASMTEN00008306-070003	0.964	0.187	Yes
ASMTEN00008306-070005	ASMTEN00008306-070005	0.710	0.454	No
ASMTEN00008306-070006	ASMTEN00008306-070006	0.661	0.474	No
ASMTEN00008306-070007	ASMTEN00008306-070007	0.561	0.496	No
ASMTEN00008307-070001	ASMTEN00008307-070001	0.647	0.478	No
ASMTEN00008307-070003	ASMTEN00008307-070003	0.819	0.385	No
ASMTEN00008307-070005	ASMTEN00008307-070005	0.823	0.382	No
ASMTEN00008307-070008	ASMTEN00008307-070008	0.952	0.214	Yes
ASMTEN00008308-070002	ASMTEN00008308-070002	0.606	0.489	No
ASMTEN00008308-070003	ASMTEN00008308-070003	0.982	0.135	Yes
ASMTEN00008308-070004	ASMTEN00008308-070004	0.474	0.500	No
ASMTEN00008308-070005	ASMTEN00008308-070005	0.772	0.420	No
ASMTEN00008308-070008	ASMTEN00008308-070008	0.759	0.428	No
ASMTEN00008308-070009	ASMTEN00008308-070009	0.552	0.498	No
ASMTEN00008309-070001	ASMTEN00008309-070001	0.837	0.369	No
ASMTEN00008309-070002	ASMTEN00008309-070002	0.459	0.498	No
ASMTEN00008309-070003	ASMTEN00008309-070003	0.494	0.500	No
ASMTEN00008401-070001	ASMTEN00008401-070001	0.600	0.490	No
ASMTEN00008401-070002	ASMTEN00008401-070002	0.882	0.322	No
ASMTEN00008401-070003	ASMTEN00008401-070003	0.565	0.496	No
ASMTEN00008401-070004	ASMTEN00008401-070004	0.952	0.214	Yes
ASMTEN00008402-070002	ASMTEN00008402-070002	0.322	0.468	Yes
ASMTEN00008402-070016	ASMTEN00008402-070016	0.489	0.500	No
ASMTEN00008402-070017	ASMTEN00008402-070017	0.404	0.491	Yes
ASMTEN00008402-070018-01	ASMTEN00008402-070018-01	0.870	0.336	No
ASMTEN00008403-070001	ASMTEN00008403-070001	0.339	0.473	Yes
ASMTEN00008403-070002	ASMTEN00008403-070002	0.243	0.429	Yes
ASMTEN00008403-070003	ASMTEN00008403-070003	0.291	0.454	Yes
ASMTEN00008403-070004	ASMTEN00008403-070004	0.859	0.348	No
ASMTEN00008405-070001	ASMTEN00008405-070001	0.917	0.276	Yes
ASMTEN00008405-070004	ASMTEN00008405-070004	0.881	0.324	No
ASMTEN00008405-070006	ASMTEN00008405-070006	0.708	0.455	No
ASMTEN00008405-070008	ASMTEN00008405-070008	0.750	0.433	No
ASMTEN00008406-070001	ASMTEN00008406-070001	0.846	0.361	No
ASMTEN00008406-070004	ASMTEN00008406-070004	0.749	0.434	No
ASMTEN00008406-070005	ASMTEN00008406-070005	0.452	0.498	No
ASMTEN00008406-070006	ASMTEN00008406-070006	0.919	0.273	Yes

Problematic Items

kable(data.frame(Problematic_Items = Form2_problematic),
      caption = "Problematic Items for Form 2") %>%
  kable_styling(bootstrap_options = c("striped", "hover", "condensed", "responsive"))

Problematic Items for Form 2

Problematic_Items
ASMTEN00000102-090019-01
ASMTEN00000102-090023-01
ASMTEN00000102-090025-03
ASMTEN00000102-090095-01
ASMTEN00008103-060003
ASMTEN00008104-060009
ASMTEN00008104-060011
ASMTEN00008105-060004
ASMTEN00008105-060010
ASMTEN00008105-060011
ASMTEN00008106-060001
ASMTEN00008106-060002
ASMTEN00008106-060003
ASMTEN00008106-060004
ASMTEN00008202-060014
ASMTEN00008202-060016
ASMTEN00008205-060014
ASMTEN00008206-060005
ASMTEN00008303-070005
ASMTEN00008303-070009
ASMTEN00008306-070002
ASMTEN00008306-070003
ASMTEN00008307-070008
ASMTEN00008308-070003
ASMTEN00008401-070004
ASMTEN00008402-070002
ASMTEN00008402-070017
ASMTEN00008403-070001
ASMTEN00008403-070002
ASMTEN00008403-070003
ASMTEN00008405-070001
ASMTEN00008406-070006

Item Response Theory Results

Test Information Curve

Form2_clean <- remove_problematic_items(Form2, Form2_problematic)
Form2_IRT <- mirt(Form2_clean, 1, itemtype = "2PL")

## 
Iteration: 1, Log-Lik: -72746.731, Max-Change: 1.12729
Iteration: 2, Log-Lik: -71284.315, Max-Change: 0.65695
Iteration: 3, Log-Lik: -70659.625, Max-Change: 0.28403
Iteration: 4, Log-Lik: -70487.240, Max-Change: 0.16670
Iteration: 5, Log-Lik: -70431.394, Max-Change: 0.11671
Iteration: 6, Log-Lik: -70414.210, Max-Change: 0.08005
Iteration: 7, Log-Lik: -70407.386, Max-Change: 0.06386
Iteration: 8, Log-Lik: -70403.233, Max-Change: 0.06080
Iteration: 9, Log-Lik: -70401.017, Max-Change: 0.04407
Iteration: 10, Log-Lik: -70398.001, Max-Change: 0.02315
Iteration: 11, Log-Lik: -70397.539, Max-Change: 0.02076
Iteration: 12, Log-Lik: -70397.263, Max-Change: 0.01588
Iteration: 13, Log-Lik: -70396.620, Max-Change: 0.00564
Iteration: 14, Log-Lik: -70396.598, Max-Change: 0.00390
Iteration: 15, Log-Lik: -70396.583, Max-Change: 0.00390
Iteration: 16, Log-Lik: -70396.565, Max-Change: 0.00240
Iteration: 17, Log-Lik: -70396.557, Max-Change: 0.00102
Iteration: 18, Log-Lik: -70396.553, Max-Change: 0.00108
Iteration: 19, Log-Lik: -70396.549, Max-Change: 0.00046
Iteration: 20, Log-Lik: -70396.549, Max-Change: 0.00125
Iteration: 21, Log-Lik: -70396.547, Max-Change: 0.00153
Iteration: 22, Log-Lik: -70396.546, Max-Change: 0.00038
Iteration: 23, Log-Lik: -70396.545, Max-Change: 0.00102
Iteration: 24, Log-Lik: -70396.544, Max-Change: 0.00128
Iteration: 25, Log-Lik: -70396.543, Max-Change: 0.00032
Iteration: 26, Log-Lik: -70396.543, Max-Change: 0.00085
Iteration: 27, Log-Lik: -70396.542, Max-Change: 0.00109
Iteration: 28, Log-Lik: -70396.541, Max-Change: 0.00027
Iteration: 29, Log-Lik: -70396.541, Max-Change: 0.00067
Iteration: 30, Log-Lik: -70396.541, Max-Change: 0.00109
Iteration: 31, Log-Lik: -70396.540, Max-Change: 0.00026
Iteration: 32, Log-Lik: -70396.540, Max-Change: 0.00059
Iteration: 33, Log-Lik: -70396.540, Max-Change: 0.00021
Iteration: 34, Log-Lik: -70396.540, Max-Change: 0.00092
Iteration: 35, Log-Lik: -70396.539, Max-Change: 0.00030
Iteration: 36, Log-Lik: -70396.539, Max-Change: 0.00069
Iteration: 37, Log-Lik: -70396.539, Max-Change: 0.00039
Iteration: 38, Log-Lik: -70396.539, Max-Change: 0.00018
Iteration: 39, Log-Lik: -70396.539, Max-Change: 0.00043
Iteration: 40, Log-Lik: -70396.538, Max-Change: 0.00021
Iteration: 41, Log-Lik: -70396.538, Max-Change: 0.00049
Iteration: 42, Log-Lik: -70396.538, Max-Change: 0.00017
Iteration: 43, Log-Lik: -70396.538, Max-Change: 0.00015
Iteration: 44, Log-Lik: -70396.538, Max-Change: 0.00035
Iteration: 45, Log-Lik: -70396.538, Max-Change: 0.00057
Iteration: 46, Log-Lik: -70396.538, Max-Change: 0.00015
Iteration: 47, Log-Lik: -70396.538, Max-Change: 0.00034
Iteration: 48, Log-Lik: -70396.538, Max-Change: 0.00011
Iteration: 49, Log-Lik: -70396.538, Max-Change: 0.00049
Iteration: 50, Log-Lik: -70396.538, Max-Change: 0.00017
Iteration: 51, Log-Lik: -70396.538, Max-Change: 0.00039
Iteration: 52, Log-Lik: -70396.538, Max-Change: 0.00021
Iteration: 53, Log-Lik: -70396.538, Max-Change: 0.00010

plot(Form2_IRT, type = "info", main = "Test Information Curve for Form 2")

Item Parameters

Form2_Params <- get_item_params(Form2_IRT)
kable(Form2_Params, caption = "Item Parameters for Form 2", digits = 3) %>%
  kable_styling(bootstrap_options = c("striped", "hover", "condensed", "responsive"))

Item Parameters for Form 2

	item	items.a	items.b	items.g	items.u
ASMTEN00000102-090022-01	ASMTEN00000102-090022-01	-0.522	3.084	0	1
ASMTEN00008102-060002	ASMTEN00008102-060002	1.569	-1.462	0	1
ASMTEN00008102-060003	ASMTEN00008102-060003	-0.783	1.573	0	1
ASMTEN00008102-060008	ASMTEN00008102-060008	0.517	-2.436	0	1
ASMTEN00008102-060009	ASMTEN00008102-060009	0.595	-3.046	0	1
ASMTEN00008103-060001	ASMTEN00008103-060001	-1.271	0.118	0	1
ASMTEN00008103-060002	ASMTEN00008103-060002	0.592	-0.010	0	1
ASMTEN00008103-060004	ASMTEN00008103-060004	-0.916	1.688	0	1
ASMTEN00008103-060006	ASMTEN00008103-060006	0.482	-2.673	0	1
ASMTEN00008104-060002	ASMTEN00008104-060002	2.558	-0.343	0	1
ASMTEN00008104-060005	ASMTEN00008104-060005	0.213	-0.810	0	1
ASMTEN00008105-060009	ASMTEN00008105-060009	1.309	-1.256	0	1
ASMTEN00008201-060001	ASMTEN00008201-060001	0.999	-0.478	0	1
ASMTEN00008201-060002	ASMTEN00008201-060002	1.264	-0.549	0	1
ASMTEN00008202-060003	ASMTEN00008202-060003	1.990	-0.246	0	1
ASMTEN00008202-060009	ASMTEN00008202-060009	0.651	-0.756	0	1
ASMTEN00008202-060011	ASMTEN00008202-060011	0.543	-1.440	0	1
ASMTEN00008202-060012	ASMTEN00008202-060012	0.784	-2.104	0	1
ASMTEN00008202-060015	ASMTEN00008202-060015	1.357	-0.941	0	1
ASMTEN00008203-060001	ASMTEN00008203-060001	0.492	0.445	0	1
ASMTEN00008203-060002	ASMTEN00008203-060002	-0.484	0.952	0	1
ASMTEN00008203-060005	ASMTEN00008203-060005	1.585	-0.107	0	1
ASMTEN00008203-060006	ASMTEN00008203-060006	0.392	-4.653	0	1
ASMTEN00008203-060013	ASMTEN00008203-060013	-0.529	0.787	0	1
ASMTEN00008204-060001	ASMTEN00008204-060001	0.523	-1.143	0	1
ASMTEN00008204-060007	ASMTEN00008204-060007	0.606	-1.216	0	1
ASMTEN00008204-060010	ASMTEN00008204-060010	2.011	-0.484	0	1
ASMTEN00008204-060011	ASMTEN00008204-060011	1.461	-0.635	0	1
ASMTEN00008205-060009	ASMTEN00008205-060009	0.488	-0.061	0	1
ASMTEN00008205-060010	ASMTEN00008205-060010	0.507	-3.768	0	1
ASMTEN00008205-060013	ASMTEN00008205-060013	-0.019	19.098	0	1
ASMTEN00008205-060025	ASMTEN00008205-060025	1.057	-2.156	0	1
ASMTEN00008206-060003	ASMTEN00008206-060003	0.542	-1.386	0	1
ASMTEN00008206-060004	ASMTEN00008206-060004	-0.855	2.502	0	1
ASMTEN00008206-060006	ASMTEN00008206-060006	1.048	-0.772	0	1
ASMTEN00008206-060007	ASMTEN00008206-060007	0.507	-0.372	0	1
ASMTEN00008206-060008	ASMTEN00008206-060008	1.494	-1.350	0	1
ASMTEN00008207-060004	ASMTEN00008207-060004	-0.253	-0.417	0	1
ASMTEN00008207-060005	ASMTEN00008207-060005	1.754	-0.882	0	1
ASMTEN00008207-060006	ASMTEN00008207-060006	-0.346	1.411	0	1
ASMTEN00008207-060007	ASMTEN00008207-060007	0.767	-0.293	0	1
ASMTEN00008207-060010	ASMTEN00008207-060010	0.404	-4.657	0	1
ASMTEN00008207-060012	ASMTEN00008207-060012	0.719	0.026	0	1
ASMTEN00008208-060002	ASMTEN00008208-060002	-0.423	1.460	0	1
ASMTEN00008208-060003	ASMTEN00008208-060003	0.456	-1.982	0	1
ASMTEN00008208-060005	ASMTEN00008208-060005	1.713	-0.222	0	1
ASMTEN00008209-060002	ASMTEN00008209-060002	-0.041	17.833	0	1
ASMTEN00008209-060003	ASMTEN00008209-060003	2.061	-1.303	0	1
ASMTEN00008209-060004	ASMTEN00008209-060004	1.936	-1.020	0	1
ASMTEN00008209-060005	ASMTEN00008209-060005	0.046	-7.335	0	1
ASMTEN00008209-060006	ASMTEN00008209-060006	2.874	-0.361	0	1
ASMTEN00008301-070001	ASMTEN00008301-070001	0.642	-0.731	0	1
ASMTEN00008301-070002	ASMTEN00008301-070002	-0.328	-0.323	0	1
ASMTEN00008301-070003	ASMTEN00008301-070003	1.663	-0.950	0	1
ASMTEN00008301-070005	ASMTEN00008301-070005	0.758	-0.940	0	1
ASMTEN00008301-070006	ASMTEN00008301-070006	2.813	-0.309	0	1
ASMTEN00008302-070007	ASMTEN00008302-070007	0.436	-1.856	0	1
ASMTEN00008302-070009	ASMTEN00008302-070009	-0.603	0.020	0	1
ASMTEN00008302-070015	ASMTEN00008302-070015	0.624	-0.667	0	1
ASMTEN00008303-070002	ASMTEN00008303-070002	1.087	-0.122	0	1
ASMTEN00008303-070003	ASMTEN00008303-070003	1.146	-1.764	0	1
ASMTEN00008303-070004	ASMTEN00008303-070004	0.590	0.021	0	1
ASMTEN00008303-070006	ASMTEN00008303-070006	-0.224	2.254	0	1
ASMTEN00008304-070001	ASMTEN00008304-070001	0.750	-1.536	0	1
ASMTEN00008304-070004	ASMTEN00008304-070004	0.587	0.233	0	1
ASMTEN00008304-070006	ASMTEN00008304-070006	2.080	-0.417	0	1
ASMTEN00008304-070007	ASMTEN00008304-070007	0.734	-0.648	0	1
ASMTEN00008306-070005	ASMTEN00008306-070005	0.513	-1.860	0	1
ASMTEN00008306-070006	ASMTEN00008306-070006	1.299	-0.710	0	1
ASMTEN00008306-070007	ASMTEN00008306-070007	0.850	-0.385	0	1
ASMTEN00008307-070001	ASMTEN00008307-070001	2.165	-0.532	0	1
ASMTEN00008307-070003	ASMTEN00008307-070003	1.024	-1.715	0	1
ASMTEN00008307-070005	ASMTEN00008307-070005	-0.592	2.765	0	1
ASMTEN00008308-070002	ASMTEN00008308-070002	2.094	-0.422	0	1
ASMTEN00008308-070004	ASMTEN00008308-070004	0.857	0.070	0	1
ASMTEN00008308-070005	ASMTEN00008308-070005	2.151	-0.903	0	1
ASMTEN00008308-070008	ASMTEN00008308-070008	1.762	-0.949	0	1
ASMTEN00008308-070009	ASMTEN00008308-070009	1.488	-0.285	0	1
ASMTEN00008309-070001	ASMTEN00008309-070001	1.266	-1.579	0	1
ASMTEN00008309-070002	ASMTEN00008309-070002	1.883	-0.011	0	1
ASMTEN00008309-070003	ASMTEN00008309-070003	0.656	-0.007	0	1
ASMTEN00008401-070001	ASMTEN00008401-070001	0.555	-0.809	0	1
ASMTEN00008401-070002	ASMTEN00008401-070002	1.025	-2.237	0	1
ASMTEN00008401-070003	ASMTEN00008401-070003	0.116	-2.269	0	1
ASMTEN00008402-070016	ASMTEN00008402-070016	-0.349	-0.141	0	1
ASMTEN00008402-070018-01	ASMTEN00008402-070018-01	0.389	-5.013	0	1
ASMTEN00008403-070004	ASMTEN00008403-070004	1.683	-1.424	0	1
ASMTEN00008405-070004	ASMTEN00008405-070004	0.897	-2.478	0	1
ASMTEN00008405-070006	ASMTEN00008405-070006	0.694	-1.414	0	1
ASMTEN00008405-070008	ASMTEN00008405-070008	0.844	-1.484	0	1
ASMTEN00008406-070001	ASMTEN00008406-070001	1.511	-1.449	0	1
ASMTEN00008406-070004	ASMTEN00008406-070004	1.628	-0.951	0	1
ASMTEN00008406-070005	ASMTEN00008406-070005	0.689	0.255	0	1

Response Frequencies

Form2_freq <- calculate_frequencies_wide(Form2_respcode)
kable(Form2_freq, caption = "Response Frequencies for Form 2") %>%
  kable_styling(bootstrap_options = c("striped", "hover", "condensed", "responsive"))

Response Frequencies for Form 2

Item	Response_1	Response_2	Response_3	Response_4	Response_5	Response_6	Response_7	Response_8
Response 1	4	1286	8	6	0	0	0	0
Response 10	725	128	412	39	0	0	0	0
Response 100	24	22	255	1003	0	0	0	0
Response 101	987	34	135	148	0	0	0	0
Response 102	719	54	29	502	0	0	0	0
Response 103	55	69	83	1097	0	0	0	0
Response 104	258	63	598	385	0	0	0	0
Response 105	643	61	487	113	0	0	0	0
Response 106	54	784	124	342	0	0	0	0
Response 107	21	114	15	1154	0	0	0	0
Response 108	139	281	737	147	0	0	0	0
Response 109	27	1242	6	29	0	0	0	0
Response 11	207	215	234	648	0	0	0	0
Response 110	270	401	420	213	0	0	0	0
Response 111	644	292	217	151	0	0	0	0
Response 112	222	529	163	390	0	0	0	0
Response 113	93	1136	59	16	0	0	0	0
Response 114	143	349	371	441	0	0	0	0
Response 115	104	201	684	315	0	0	0	0
Response 116	68	377	559	300	0	0	0	0
Response 117	98	71	1124	11	0	0	0	0
Response 118	18	51	1195	40	0	0	0	0
Response 119	31	59	66	1148	0	0	0	0
Response 12	1300	4	0	0	0	0	0	0
Response 120	140	177	63	924	0	0	0	0
Response 121	202	85	974	43	0	0	0	0
Response 122	91	41	1105	67	0	0	0	0
Response 123	89	60	974	181	0	0	0	0
Response 124	326	58	591	329	0	0	0	0
Response 125	1198	39	21	46	0	0	0	0
Response 13	1036	37	61	170	0	0	0	0
Response 14	189	1010	54	51	0	0	0	0
Response 15	222	203	755	124	0	0	0	0
Response 16	11	542	700	51	0	0	0	0
Response 17	1265	12	1	26	0	0	0	0
Response 18	1298	2	1	3	0	0	0	0
Response 19	1241	60	2	1	0	0	0	0
Response 2	48	60	1072	124	0	0	0	0
Response 20	65	203	1025	11	0	0	0	0
Response 21	9	97	1179	19	0	0	0	0
Response 22	20	357	484	443	0	0	0	0
Response 23	2	9	1280	13	0	0	0	0
Response 24	1236	35	24	9	0	0	0	0
Response 25	1277	19	6	2	0	0	0	0
Response 26	1251	32	21	0	0	0	0	0
Response 27	29	452	765	58	0	0	0	0
Response 28	325	62	109	808	0	0	0	0
Response 29	67	706	275	256	0	0	0	0
Response 3	7	5	7	1285	0	0	0	0
Response 30	55	52	407	790	0	0	0	0
Response 31	878	13	394	19	0	0	0	0
Response 32	13	194	1068	29	0	0	0	0
Response 33	1197	15	61	31	0	0	0	0
Response 34	63	945	79	217	0	0	0	0
Response 35	1206	2	85	11	0	0	0	0
Response 36	252	181	583	288	0	0	0	0
Response 37	56	74	383	791	0	0	0	0
Response 38	650	83	423	148	0	0	0	0
Response 39	6	1122	5	171	0	0	0	0
Response 4	22	57	1209	16	0	0	0	0
Response 40	777	276	111	140	0	0	0	0
Response 41	180	831	96	197	0	0	0	0
Response 42	94	861	274	75	0	0	0	0
Response 43	27	104	821	352	0	0	0	0
Response 44	223	54	177	850	0	0	0	0
Response 45	652	533	74	45	0	0	0	0
Response 46	81	48	1125	50	0	0	0	0
Response 47	16	80	435	773	0	0	0	0
Response 48	118	410	384	392	0	0	0	0
Response 49	41	1149	24	90	0	0	0	0
Response 5	1260	11	20	13	0	0	0	0
Response 50	870	224	112	98	0	0	0	0
Response 51	1129	73	6	96	0	0	0	0
Response 52	5	26	7	1266	0	0	0	0
Response 53	184	149	850	121	0	0	0	0
Response 54	134	208	706	256	0	0	0	0
Response 55	131	47	49	1077	0	0	0	0
Response 56	395	618	216	75	0	0	0	0
Response 57	80	122	963	139	0	0	0	0
Response 58	404	29	811	60	0	0	0	0
Response 59	706	274	206	118	0	0	0	0
Response 6	146	16	32	1110	0	0	0	0
Response 60	68	73	1121	42	0	0	0	0
Response 61	162	631	462	49	0	0	0	0
Response 62	150	112	845	197	0	0	0	0
Response 63	347	913	31	13	0	0	0	0
Response 64	695	390	35	184	0	0	0	0
Response 65	265	876	66	97	0	0	0	0
Response 66	1132	39	58	75	0	0	0	0
Response 67	1030	81	21	172	0	0	0	0
Response 68	236	85	757	226	0	0	0	0
Response 69	237	46	766	255	0	0	0	0
Response 7	262	45	985	12	0	0	0	0
Response 70	121	53	784	346	0	0	0	0
Response 71	618	236	178	272	0	0	0	0
Response 72	979	83	135	107	0	0	0	0
Response 73	95	53	306	850	0	0	0	0
Response 74	159	317	87	741	0	0	0	0
Response 75	889	320	39	56	0	0	0	0
Response 76	661	587	40	16	0	0	0	0
Response 77	525	5	6	768	0	0	0	0
Response 78	75	530	664	35	0	0	0	0
Response 79	79	92	1104	29	0	0	0	0
Response 8	220	997	63	24	0	0	0	0
Response 80	636	388	203	77	0	0	0	0
Response 81	730	181	12	381	0	0	0	0
Response 82	157	264	71	812	0	0	0	0
Response 83	47	6	5	1246	0	0	0	0
Response 84	167	964	138	35	0	0	0	0
Response 85	181	605	318	200	0	0	0	0
Response 86	57	338	792	117	0	0	0	0
Response 87	776	171	30	327	0	0	0	0
Response 88	1207	14	81	2	0	0	0	0
Response 89	4	19	24	1257	0	0	0	0
Response 9	1102	16	135	51	0	0	0	0
Response 90	927	141	44	192	0	0	0	0
Response 91	864	146	154	140	0	0	0	0
Response 92	176	289	733	106	0	0	0	0
Response 93	194	17	38	6	647	157	203	42
Response 94	44	1067	93	100	0	0	0	0
Response 95	27	92	114	1071	0	0	0	0
Response 96	2	1240	22	40	0	0	0	0
Response 97	227	211	792	74	0	0	0	0
Response 98	1279	7	17	1	0	0	0	0
Response 99	619	166	96	423	0	0	0	0

Form 3 Analysis

Classical Test Theory Results

CTT Summary

Form3_CTT <- ctt_analysis(Form3)
Form3_problematic <- identify_problematic_items(Form3_CTT)

Form3_CTT %>%
  mutate(problematic = ifelse(item %in% Form3_problematic, "Yes", "No")) %>%
  select(item, mean, sd, problematic) %>%
  kable(caption = "Classical Test Theory Results for Form 3", digits = 3) %>%
  kable_styling(bootstrap_options = c("striped", "hover", "condensed", "responsive")) %>%
  row_spec(which(Form3_CTT$item %in% Form3_problematic), background = "yellow")

Classical Test Theory Results for Form 3

	item	mean	sd	problematic
ASMTEN00000102-090019-01	ASMTEN00000102-090019-01	0.988	0.107	Yes
ASMTEN00000102-090022-01	ASMTEN00000102-090022-01	0.814	0.389	No
ASMTEN00000102-090025-03	ASMTEN00000102-090025-03	0.935	0.247	Yes
ASMTEN00000102-090026-01	ASMTEN00000102-090026-01	0.938	0.241	Yes
ASMTEN00000102-090109	ASMTEN00000102-090109	0.384	0.486	Yes
ASMTEN00008102-060001	ASMTEN00008102-060001	1.000	0.000	Yes
ASMTEN00008102-060005	ASMTEN00008102-060005	0.896	0.306	Yes
ASMTEN00008102-060008	ASMTEN00008102-060008	0.780	0.415	No
ASMTEN00008102-060009	ASMTEN00008102-060009	0.844	0.363	No
ASMTEN00008103-060001	ASMTEN00008103-060001	0.543	0.498	No
ASMTEN00008103-060003	ASMTEN00008103-060003	0.996	0.066	Yes
ASMTEN00008103-060005	ASMTEN00008103-060005	0.730	0.444	No
ASMTEN00008103-060006	ASMTEN00008103-060006	0.794	0.405	No
ASMTEN00008103-060008	ASMTEN00008103-060008	0.436	0.496	No
ASMTEN00008104-060001	ASMTEN00008104-060001	0.444	0.497	No
ASMTEN00008104-060008	ASMTEN00008104-060008	0.404	0.491	Yes
ASMTEN00008104-060010	ASMTEN00008104-060010	0.958	0.200	Yes
ASMTEN00008104-060011	ASMTEN00008104-060011	1.000	0.000	Yes
ASMTEN00008105-060003	ASMTEN00008105-060003	0.507	0.500	No
ASMTEN00008105-060007	ASMTEN00008105-060007	0.607	0.488	No
ASMTEN00008105-060009	ASMTEN00008105-060009	0.808	0.394	No
ASMTEN00008105-060010	ASMTEN00008105-060010	0.884	0.320	No
ASMTEN00008106-060001	ASMTEN00008106-060001	0.985	0.123	Yes
ASMTEN00008106-060002	ASMTEN00008106-060002	0.955	0.208	Yes
ASMTEN00008106-060003	ASMTEN00008106-060003	0.979	0.144	Yes
ASMTEN00008106-060004	ASMTEN00008106-060004	0.957	0.203	Yes
ASMTEN00008201-060001	ASMTEN00008201-060001	0.561	0.496	No
ASMTEN00008201-060003	ASMTEN00008201-060003	0.860	0.348	No
ASMTEN00008202-060002	ASMTEN00008202-060002	0.643	0.479	No
ASMTEN00008202-060006	ASMTEN00008202-060006	0.678	0.467	No
ASMTEN00008202-060008	ASMTEN00008202-060008	0.505	0.500	No
ASMTEN00008202-060009	ASMTEN00008202-060009	0.609	0.488	No
ASMTEN00008202-060010	ASMTEN00008202-060010	0.567	0.496	No
ASMTEN00008202-060013	ASMTEN00008202-060013	0.708	0.455	No
ASMTEN00008202-060014	ASMTEN00008202-060014	0.904	0.294	Yes
ASMTEN00008202-060016	ASMTEN00008202-060016	0.917	0.276	Yes
ASMTEN00008203-060001	ASMTEN00008203-060001	0.476	0.500	No
ASMTEN00008203-060002	ASMTEN00008203-060002	0.615	0.487	No
ASMTEN00008203-060003	ASMTEN00008203-060003	0.726	0.446	No
ASMTEN00008203-060004	ASMTEN00008203-060004	0.857	0.350	No
ASMTEN00008203-060007	ASMTEN00008203-060007	0.784	0.411	No
ASMTEN00008204-060001	ASMTEN00008204-060001	0.636	0.481	No
ASMTEN00008204-060002	ASMTEN00008204-060002	0.644	0.479	No
ASMTEN00008204-060004	ASMTEN00008204-060004	0.451	0.498	No
ASMTEN00008204-060006	ASMTEN00008204-060006	0.432	0.495	No
ASMTEN00008205-060004	ASMTEN00008205-060004	0.949	0.220	Yes
ASMTEN00008205-060007	ASMTEN00008205-060007	0.806	0.396	No
ASMTEN00008205-060009	ASMTEN00008205-060009	0.512	0.500	No
ASMTEN00008205-060010	ASMTEN00008205-060010	0.851	0.356	No
ASMTEN00008205-060018	ASMTEN00008205-060018	0.911	0.285	Yes
ASMTEN00008206-060001	ASMTEN00008206-060001	0.760	0.427	No
ASMTEN00008206-060004	ASMTEN00008206-060004	0.858	0.349	No
ASMTEN00008206-060007	ASMTEN00008206-060007	0.537	0.499	No
ASMTEN00008206-060008	ASMTEN00008206-060008	0.837	0.370	No
ASMTEN00008207-060002	ASMTEN00008207-060002	0.747	0.435	No
ASMTEN00008207-060003	ASMTEN00008207-060003	0.928	0.259	Yes
ASMTEN00008207-060005-02	ASMTEN00008207-060005-02	0.787	0.409	No
ASMTEN00008207-060006	ASMTEN00008207-060006	0.609	0.488	No
ASMTEN00008207-060007	ASMTEN00008207-060007	0.534	0.499	No
ASMTEN00008208-060004	ASMTEN00008208-060004	0.590	0.492	No
ASMTEN00008208-060006	ASMTEN00008208-060006	0.899	0.302	Yes
ASMTEN00008208-060007	ASMTEN00008208-060007	0.426	0.495	No
ASMTEN00008208-060008	ASMTEN00008208-060008	0.881	0.324	No
ASMTEN00008209-060002	ASMTEN00008209-060002	0.725	0.447	No
ASMTEN00008209-060003	ASMTEN00008209-060003	0.879	0.327	No
ASMTEN00008209-060004	ASMTEN00008209-060004	0.805	0.396	No
ASMTEN00008209-060005	ASMTEN00008209-060005	0.597	0.491	No
ASMTEN00008209-060006	ASMTEN00008209-060006	0.616	0.487	No
ASMTEN00008301-070001	ASMTEN00008301-070001	0.618	0.486	No
ASMTEN00008301-070004	ASMTEN00008301-070004	0.942	0.233	Yes
ASMTEN00008301-070005	ASMTEN00008301-070005	0.633	0.482	No
ASMTEN00008301-070006	ASMTEN00008301-070006	0.574	0.495	No
ASMTEN00008301-070007	ASMTEN00008301-070007	0.521	0.500	No
ASMTEN00008302-070001	ASMTEN00008302-070001	0.450	0.498	No
ASMTEN00008302-070003	ASMTEN00008302-070003	0.401	0.490	Yes
ASMTEN00008302-070004	ASMTEN00008302-070004	0.880	0.325	No
ASMTEN00008302-070008	ASMTEN00008302-070008	0.745	0.436	No
ASMTEN00008303-070002	ASMTEN00008303-070002	0.530	0.499	No
ASMTEN00008303-070003	ASMTEN00008303-070003	0.838	0.369	No
ASMTEN00008303-070006	ASMTEN00008303-070006	0.631	0.483	No
ASMTEN00008303-070007	ASMTEN00008303-070007	0.390	0.488	Yes
ASMTEN00008303-070009	ASMTEN00008303-070009	0.952	0.213	Yes
ASMTEN00008304-070005	ASMTEN00008304-070005	0.739	0.439	No
ASMTEN00008304-070007	ASMTEN00008304-070007	0.673	0.469	No
ASMTEN00008304-070008	ASMTEN00008304-070008	0.463	0.499	No
ASMTEN00008304-070009	ASMTEN00008304-070009	0.520	0.500	No
ASMTEN00008304-070013	ASMTEN00008304-070013	0.584	0.493	No
ASMTEN00008306-070002	ASMTEN00008306-070002	0.905	0.293	Yes
ASMTEN00008306-070003	ASMTEN00008306-070003	0.965	0.184	Yes
ASMTEN00008306-070006	ASMTEN00008306-070006	0.678	0.467	No
ASMTEN00008306-070009	ASMTEN00008306-070009	0.621	0.485	No
ASMTEN00008306-070010	ASMTEN00008306-070010	0.561	0.496	No
ASMTEN00008307-070002	ASMTEN00008307-070002	0.620	0.486	No
ASMTEN00008307-070004	ASMTEN00008307-070004	0.813	0.390	No
ASMTEN00008307-070005	ASMTEN00008307-070005	0.809	0.393	No
ASMTEN00008308-070001	ASMTEN00008308-070001	0.939	0.239	Yes
ASMTEN00008308-070003	ASMTEN00008308-070003	0.985	0.120	Yes
ASMTEN00008308-070004	ASMTEN00008308-070004	0.554	0.497	No
ASMTEN00008308-070007	ASMTEN00008308-070007	0.752	0.432	No
ASMTEN00008308-070009	ASMTEN00008308-070009	0.571	0.495	No
ASMTEN00008308-070012	ASMTEN00008308-070012	0.656	0.475	No
ASMTEN00008308-070013	ASMTEN00008308-070013	0.392	0.488	Yes
ASMTEN00008309-070001	ASMTEN00008309-070001	0.834	0.373	No
ASMTEN00008309-070002	ASMTEN00008309-070002	0.465	0.499	No
ASMTEN00008309-070003	ASMTEN00008309-070003	0.489	0.500	No
ASMTEN00008401-070001	ASMTEN00008401-070001	0.608	0.488	No
ASMTEN00008401-070002	ASMTEN00008401-070002	0.881	0.324	No
ASMTEN00008401-070003	ASMTEN00008401-070003	0.590	0.492	No
ASMTEN00008401-070004	ASMTEN00008401-070004	0.927	0.261	Yes
ASMTEN00008402-070002	ASMTEN00008402-070002	0.312	0.463	Yes
ASMTEN00008402-070010-01	ASMTEN00008402-070010-01	0.421	0.494	No
ASMTEN00008402-070015-01	ASMTEN00008402-070015-01	0.576	0.494	No
ASMTEN00008402-070016	ASMTEN00008402-070016	0.501	0.500	No
ASMTEN00008403-070004	ASMTEN00008403-070004	0.867	0.339	No
ASMTEN00008403-070005	ASMTEN00008403-070005	0.585	0.493	No
ASMTEN00008403-070007	ASMTEN00008403-070007	0.871	0.336	No
ASMTEN00008403-070008	ASMTEN00008403-070008	0.573	0.495	No
ASMTEN00008405-070001	ASMTEN00008405-070001	0.936	0.245	Yes
ASMTEN00008405-070003	ASMTEN00008405-070003	0.533	0.499	No
ASMTEN00008405-070006	ASMTEN00008405-070006	0.701	0.458	No
ASMTEN00008405-070007	ASMTEN00008405-070007	0.727	0.446	No
ASMTEN00008406-070004	ASMTEN00008406-070004	0.745	0.436	No
ASMTEN00008406-070006	ASMTEN00008406-070006	0.914	0.281	Yes
ASMTEN00008406-070007	ASMTEN00008406-070007	0.765	0.424	No
ASMTEN00008406-070008	ASMTEN00008406-070008	0.645	0.479	No

Problematic Items

kable(data.frame(Problematic_Items = Form3_problematic),
      caption = "Problematic Items for Form 3") %>%
  kable_styling(bootstrap_options = c("striped", "hover", "condensed", "responsive"))

Problematic Items for Form 3

Problematic_Items
ASMTEN00000102-090019-01
ASMTEN00000102-090025-03
ASMTEN00000102-090026-01
ASMTEN00000102-090109
ASMTEN00008102-060001
ASMTEN00008102-060005
ASMTEN00008103-060003
ASMTEN00008104-060008
ASMTEN00008104-060010
ASMTEN00008104-060011
ASMTEN00008106-060001
ASMTEN00008106-060002
ASMTEN00008106-060003
ASMTEN00008106-060004
ASMTEN00008202-060014
ASMTEN00008202-060016
ASMTEN00008205-060004
ASMTEN00008205-060018
ASMTEN00008207-060003
ASMTEN00008208-060006
ASMTEN00008301-070004
ASMTEN00008302-070003
ASMTEN00008303-070007
ASMTEN00008303-070009
ASMTEN00008306-070002
ASMTEN00008306-070003
ASMTEN00008308-070001
ASMTEN00008308-070003
ASMTEN00008308-070013
ASMTEN00008401-070004
ASMTEN00008402-070002
ASMTEN00008405-070001
ASMTEN00008406-070006

Item Response Theory Results

Test Information Curve

Form3_clean <- remove_problematic_items(Form3, Form3_problematic)
Form3_IRT <- mirt(Form3_clean, 1, itemtype = "2PL")

## 
Iteration: 1, Log-Lik: -73263.316, Max-Change: 0.94232
Iteration: 2, Log-Lik: -72239.884, Max-Change: 0.44940
Iteration: 3, Log-Lik: -71917.321, Max-Change: 0.30608
Iteration: 4, Log-Lik: -71649.110, Max-Change: 0.19480
Iteration: 5, Log-Lik: -71524.278, Max-Change: 0.17074
Iteration: 6, Log-Lik: -71452.569, Max-Change: 0.14529
Iteration: 7, Log-Lik: -71417.266, Max-Change: 0.11098
Iteration: 8, Log-Lik: -71400.400, Max-Change: 0.08025
Iteration: 9, Log-Lik: -71392.043, Max-Change: 0.06056
Iteration: 10, Log-Lik: -71387.704, Max-Change: 0.04607
Iteration: 11, Log-Lik: -71385.352, Max-Change: 0.04085
Iteration: 12, Log-Lik: -71383.706, Max-Change: 0.04141
Iteration: 13, Log-Lik: -71382.175, Max-Change: 0.01698
Iteration: 14, Log-Lik: -71381.993, Max-Change: 0.01419
Iteration: 15, Log-Lik: -71381.884, Max-Change: 0.01036
Iteration: 16, Log-Lik: -71381.686, Max-Change: 0.00375
Iteration: 17, Log-Lik: -71381.677, Max-Change: 0.00257
Iteration: 18, Log-Lik: -71381.672, Max-Change: 0.00106
Iteration: 19, Log-Lik: -71381.670, Max-Change: 0.00130
Iteration: 20, Log-Lik: -71381.668, Max-Change: 0.00183
Iteration: 21, Log-Lik: -71381.667, Max-Change: 0.00291
Iteration: 22, Log-Lik: -71381.666, Max-Change: 0.00231
Iteration: 23, Log-Lik: -71381.665, Max-Change: 0.00073
Iteration: 24, Log-Lik: -71381.665, Max-Change: 0.00179
Iteration: 25, Log-Lik: -71381.665, Max-Change: 0.00094
Iteration: 26, Log-Lik: -71381.663, Max-Change: 0.00046
Iteration: 27, Log-Lik: -71381.663, Max-Change: 0.00112
Iteration: 28, Log-Lik: -71381.663, Max-Change: 0.00057
Iteration: 29, Log-Lik: -71381.662, Max-Change: 0.00142
Iteration: 30, Log-Lik: -71381.662, Max-Change: 0.00043
Iteration: 31, Log-Lik: -71381.662, Max-Change: 0.00038
Iteration: 32, Log-Lik: -71381.662, Max-Change: 0.00092
Iteration: 33, Log-Lik: -71381.662, Max-Change: 0.00146
Iteration: 34, Log-Lik: -71381.661, Max-Change: 0.00124
Iteration: 35, Log-Lik: -71381.661, Max-Change: 0.00039
Iteration: 36, Log-Lik: -71381.661, Max-Change: 0.00096
Iteration: 37, Log-Lik: -71381.661, Max-Change: 0.00052
Iteration: 38, Log-Lik: -71381.661, Max-Change: 0.00025
Iteration: 39, Log-Lik: -71381.661, Max-Change: 0.00062
Iteration: 40, Log-Lik: -71381.661, Max-Change: 0.00033
Iteration: 41, Log-Lik: -71381.661, Max-Change: 0.00081
Iteration: 42, Log-Lik: -71381.661, Max-Change: 0.00025
Iteration: 43, Log-Lik: -71381.660, Max-Change: 0.00022
Iteration: 44, Log-Lik: -71381.660, Max-Change: 0.00053
Iteration: 45, Log-Lik: -71381.660, Max-Change: 0.00017
Iteration: 46, Log-Lik: -71381.660, Max-Change: 0.00015
Iteration: 47, Log-Lik: -71381.660, Max-Change: 0.00036
Iteration: 48, Log-Lik: -71381.660, Max-Change: 0.00054
Iteration: 49, Log-Lik: -71381.660, Max-Change: 0.00053
Iteration: 50, Log-Lik: -71381.660, Max-Change: 0.00016
Iteration: 51, Log-Lik: -71381.660, Max-Change: 0.00039
Iteration: 52, Log-Lik: -71381.660, Max-Change: 0.00022
Iteration: 53, Log-Lik: -71381.660, Max-Change: 0.00011
Iteration: 54, Log-Lik: -71381.660, Max-Change: 0.00027
Iteration: 55, Log-Lik: -71381.660, Max-Change: 0.00014
Iteration: 56, Log-Lik: -71381.660, Max-Change: 0.00034
Iteration: 57, Log-Lik: -71381.660, Max-Change: 0.00010
Iteration: 58, Log-Lik: -71381.660, Max-Change: 0.00009

plot(Form3_IRT, type = "info", main = "Test Information Curve for Form 3")

Item Parameters

Form3_Params <- get_item_params(Form3_IRT)
kable(Form3_Params, caption = "Item Parameters for Form 3", digits = 3) %>%
  kable_styling(bootstrap_options = c("striped", "hover", "condensed", "responsive"))

Item Parameters for Form 3

	item	items.a	items.b	items.g	items.u
ASMTEN00000102-090022-01	ASMTEN00000102-090022-01	-0.587	2.687	0	1
ASMTEN00008102-060008	ASMTEN00008102-060008	0.530	-2.519	0	1
ASMTEN00008102-060009	ASMTEN00008102-060009	0.337	-5.108	0	1
ASMTEN00008103-060001	ASMTEN00008103-060001	-1.240	0.089	0	1
ASMTEN00008103-060005	ASMTEN00008103-060005	1.519	-0.921	0	1
ASMTEN00008103-060006	ASMTEN00008103-060006	0.520	-2.731	0	1
ASMTEN00008103-060008	ASMTEN00008103-060008	-0.266	-0.995	0	1
ASMTEN00008104-060001	ASMTEN00008104-060001	0.636	0.347	0	1
ASMTEN00008105-060003	ASMTEN00008105-060003	0.600	-0.086	0	1
ASMTEN00008105-060007	ASMTEN00008105-060007	1.494	-0.472	0	1
ASMTEN00008105-060009	ASMTEN00008105-060009	1.077	-1.590	0	1
ASMTEN00008105-060010	ASMTEN00008105-060010	0.701	-3.110	0	1
ASMTEN00008201-060001	ASMTEN00008201-060001	1.672	-0.306	0	1
ASMTEN00008201-060003	ASMTEN00008201-060003	1.143	-1.874	0	1
ASMTEN00008202-060002	ASMTEN00008202-060002	1.015	-0.734	0	1
ASMTEN00008202-060006	ASMTEN00008202-060006	0.667	-1.239	0	1
ASMTEN00008202-060008	ASMTEN00008202-060008	-0.006	3.372	0	1
ASMTEN00008202-060009	ASMTEN00008202-060009	0.464	-1.020	0	1
ASMTEN00008202-060010	ASMTEN00008202-060010	-0.469	0.577	0	1
ASMTEN00008202-060013	ASMTEN00008202-060013	-0.499	1.851	0	1
ASMTEN00008203-060001	ASMTEN00008203-060001	0.409	0.223	0	1
ASMTEN00008203-060002	ASMTEN00008203-060002	-0.387	1.241	0	1
ASMTEN00008203-060003	ASMTEN00008203-060003	0.456	-2.236	0	1
ASMTEN00008203-060004	ASMTEN00008203-060004	0.752	-2.592	0	1
ASMTEN00008203-060007	ASMTEN00008203-060007	0.281	-4.667	0	1
ASMTEN00008204-060001	ASMTEN00008204-060001	0.549	-1.097	0	1
ASMTEN00008204-060002	ASMTEN00008204-060002	0.389	-1.593	0	1
ASMTEN00008204-060004	ASMTEN00008204-060004	-0.277	-0.728	0	1
ASMTEN00008204-060006	ASMTEN00008204-060006	0.554	0.501	0	1
ASMTEN00008205-060007	ASMTEN00008205-060007	2.522	-0.979	0	1
ASMTEN00008205-060009	ASMTEN00008205-060009	0.457	-0.127	0	1
ASMTEN00008205-060010	ASMTEN00008205-060010	0.500	-3.635	0	1
ASMTEN00008206-060001	ASMTEN00008206-060001	0.622	-2.002	0	1
ASMTEN00008206-060004	ASMTEN00008206-060004	-0.495	3.826	0	1
ASMTEN00008206-060007	ASMTEN00008206-060007	0.527	-0.319	0	1
ASMTEN00008206-060008	ASMTEN00008206-060008	1.677	-1.328	0	1
ASMTEN00008207-060002	ASMTEN00008207-060002	1.663	-0.941	0	1
ASMTEN00008207-060005-02	ASMTEN00008207-060005-02	1.343	-1.257	0	1
ASMTEN00008207-060006	ASMTEN00008207-060006	-0.368	1.229	0	1
ASMTEN00008207-060007	ASMTEN00008207-060007	0.617	-0.272	0	1
ASMTEN00008208-060004	ASMTEN00008208-060004	0.266	-1.399	0	1
ASMTEN00008208-060007	ASMTEN00008208-060007	0.533	0.565	0	1
ASMTEN00008208-060008	ASMTEN00008208-060008	0.761	-2.856	0	1
ASMTEN00008209-060002	ASMTEN00008209-060002	0.206	-4.738	0	1
ASMTEN00008209-060003	ASMTEN00008209-060003	2.004	-1.414	0	1
ASMTEN00008209-060004	ASMTEN00008209-060004	1.783	-1.144	0	1
ASMTEN00008209-060005	ASMTEN00008209-060005	0.417	-0.992	0	1
ASMTEN00008209-060006	ASMTEN00008209-060006	2.694	-0.431	0	1
ASMTEN00008301-070001	ASMTEN00008301-070001	0.501	-1.032	0	1
ASMTEN00008301-070005	ASMTEN00008301-070005	0.506	-1.159	0	1
ASMTEN00008301-070006	ASMTEN00008301-070006	2.469	-0.329	0	1
ASMTEN00008301-070007	ASMTEN00008301-070007	-0.279	0.303	0	1
ASMTEN00008302-070001	ASMTEN00008302-070001	-0.217	-0.942	0	1
ASMTEN00008302-070004	ASMTEN00008302-070004	-0.656	3.288	0	1
ASMTEN00008302-070008	ASMTEN00008302-070008	1.520	-0.979	0	1
ASMTEN00008303-070002	ASMTEN00008303-070002	1.118	-0.205	0	1
ASMTEN00008303-070003	ASMTEN00008303-070003	1.087	-1.779	0	1
ASMTEN00008303-070006	ASMTEN00008303-070006	-0.025	21.183	0	1
ASMTEN00008304-070005	ASMTEN00008304-070005	1.708	-0.900	0	1
ASMTEN00008304-070007	ASMTEN00008304-070007	0.473	-1.609	0	1
ASMTEN00008304-070008	ASMTEN00008304-070008	0.238	0.632	0	1
ASMTEN00008304-070009	ASMTEN00008304-070009	0.520	-0.190	0	1
ASMTEN00008304-070013	ASMTEN00008304-070013	0.416	-0.859	0	1
ASMTEN00008306-070006	ASMTEN00008306-070006	1.310	-0.779	0	1
ASMTEN00008306-070009	ASMTEN00008306-070009	1.595	-0.507	0	1
ASMTEN00008306-070010	ASMTEN00008306-070010	0.620	-0.462	0	1
ASMTEN00008307-070002	ASMTEN00008307-070002	-0.905	0.565	0	1
ASMTEN00008307-070004	ASMTEN00008307-070004	-0.814	2.008	0	1
ASMTEN00008307-070005	ASMTEN00008307-070005	-0.513	2.964	0	1
ASMTEN00008308-070004	ASMTEN00008308-070004	0.538	-0.455	0	1
ASMTEN00008308-070007	ASMTEN00008308-070007	1.130	-1.210	0	1
ASMTEN00008308-070009	ASMTEN00008308-070009	1.492	-0.343	0	1
ASMTEN00008308-070012	ASMTEN00008308-070012	0.543	-1.283	0	1
ASMTEN00008309-070001	ASMTEN00008309-070001	1.127	-1.704	0	1
ASMTEN00008309-070002	ASMTEN00008309-070002	1.619	0.012	0	1
ASMTEN00008309-070003	ASMTEN00008309-070003	0.606	0.047	0	1
ASMTEN00008401-070001	ASMTEN00008401-070001	0.538	-0.893	0	1
ASMTEN00008401-070002	ASMTEN00008401-070002	0.523	-3.995	0	1
ASMTEN00008401-070003	ASMTEN00008401-070003	0.019	-19.456	0	1
ASMTEN00008402-070010-01	ASMTEN00008402-070010-01	-0.152	-2.099	0	1
ASMTEN00008402-070015-01	ASMTEN00008402-070015-01	0.809	-0.473	0	1
ASMTEN00008402-070016	ASMTEN00008402-070016	-0.231	0.022	0	1
ASMTEN00008403-070004	ASMTEN00008403-070004	1.246	-1.821	0	1
ASMTEN00008403-070005	ASMTEN00008403-070005	-0.289	1.204	0	1
ASMTEN00008403-070007	ASMTEN00008403-070007	1.279	-1.811	0	1
ASMTEN00008403-070008	ASMTEN00008403-070008	-0.209	1.424	0	1
ASMTEN00008405-070003	ASMTEN00008405-070003	0.182	-0.731	0	1
ASMTEN00008405-070006	ASMTEN00008405-070006	0.553	-1.658	0	1
ASMTEN00008405-070007	ASMTEN00008405-070007	1.371	-0.960	0	1
ASMTEN00008406-070004	ASMTEN00008406-070004	1.362	-1.042	0	1
ASMTEN00008406-070007	ASMTEN00008406-070007	1.123	-1.289	0	1
ASMTEN00008406-070008	ASMTEN00008406-070008	2.381	-0.518	0	1

Response Frequencies

Form3_freq <- calculate_frequencies_wide(Form3_respcode)
kable(Form3_freq, caption = "Response Frequencies for Form 3") %>%
  kable_styling(bootstrap_options = c("striped", "hover", "condensed", "responsive"))

Response Frequencies for Form 3

Item	Response_1	Response_2	Response_3	Response_4	Response_5	Response_6	Response_7	Response_8
Response 1	2	1320	8	6	0	0	0	0
Response 10	719	141	432	44	0	0	0	0
Response 100	761	70	33	472	0	0	0	0
Response 101	83	164	878	211	0	0	0	0
Response 102	281	384	144	527	0	0	0	0
Response 103	41	66	110	1119	0	0	0	0
Response 104	299	53	627	357	0	0	0	0
Response 105	655	81	467	133	0	0	0	0
Response 106	69	820	134	313	0	0	0	0
Response 107	41	95	22	1178	0	0	0	0
Response 108	127	294	785	130	0	0	0	0
Response 109	37	1240	9	50	0	0	0	0
Response 11	4	1330	2	0	0	0	0	0
Response 110	277	403	409	247	0	0	0	0
Response 111	392	187	565	192	0	0	0	0
Response 112	114	149	300	773	0	0	0	0
Response 113	677	286	215	158	0	0	0	0
Response 114	84	71	1164	17	0	0	0	0
Response 115	782	275	123	156	0	0	0	0
Response 116	35	1167	86	48	0	0	0	0
Response 117	86	92	760	398	0	0	0	0
Response 118	16	40	1249	31	0	0	0	0
Response 119	142	301	708	185	0	0	0	0
Response 12	29	242	977	88	0	0	0	0
Response 120	145	186	67	938	0	0	0	0
Response 121	84	32	250	970	0	0	0	0
Response 122	68	62	999	207	0	0	0	0
Response 123	1220	35	32	49	0	0	0	0
Response 124	131	142	45	1018	0	0	0	0
Response 125	221	869	63	183	0	0	0	0
Response 13	163	1065	41	67	0	0	0	0
Response 14	45	530	178	583	0	0	0	0
Response 15	478	204	593	61	0	0	0	0
Response 16	124	307	537	368	0	0	0	0
Response 17	14	37	2	1283	0	0	0	0
Response 18	1336	0	0	0	0	0	0	0
Response 19	123	147	672	394	0	0	0	0
Response 2	58	82	1088	108	0	0	0	0
Response 20	32	823	368	113	0	0	0	0
Response 21	70	176	1080	10	0	0	0	0
Response 22	25	108	1183	20	0	0	0	0
Response 23	1	8	1315	12	0	0	0	0
Response 24	1276	44	13	3	0	0	0	0
Response 25	1307	22	7	0	0	0	0	0
Response 26	1280	34	5	17	0	0	0	0
Response 27	42	475	753	66	0	0	0	0
Response 28	1151	31	38	116	0	0	0	0
Response 29	82	110	863	281	0	0	0	0
Response 3	18	55	1250	13	0	0	0	0
Response 30	88	193	151	904	0	0	0	0
Response 31	683	219	220	214	0	0	0	0
Response 32	59	60	407	810	0	0	0	0
Response 33	246	226	751	113	0	0	0	0
Response 34	152	191	947	46	0	0	0	0
Response 35	1209	20	73	34	0	0	0	0
Response 36	1229	1	96	10	0	0	0	0
Response 37	179	214	635	308	0	0	0	0
Response 38	62	91	368	815	0	0	0	0
Response 39	975	61	157	143	0	0	0	0
Response 4	26	15	1255	40	0	0	0	0
Response 40	1145	33	118	40	0	0	0	0
Response 41	39	182	1052	63	0	0	0	0
Response 42	227	852	77	180	0	0	0	0
Response 43	179	216	80	861	0	0	0	0
Response 44	154	20	283	56	474	128	162	59
Response 45	328	577	239	192	0	0	0	0
Response 46	1268	17	41	10	0	0	0	0
Response 47	41	1072	177	46	0	0	0	0
Response 48	685	534	67	50	0	0	0	0
Response 49	96	44	1139	57	0	0	0	0
Response 5	228	344	516	248	0	0	0	0
Response 50	15	57	1218	46	0	0	0	0
Response 51	78	1016	71	171	0	0	0	0
Response 52	1150	89	5	92	0	0	0	0
Response 53	112	200	726	298	0	0	0	0
Response 54	122	56	45	1113	0	0	0	0
Response 55	54	182	999	101	0	0	0	0
Response 56	1241	44	13	38	0	0	0	0
Response 57	59	105	1052	120	0	0	0	0
Response 58	434	34	815	53	0	0	0	0
Response 59	712	294	209	121	0	0	0	0
Response 6	1336	0	0	0	0	0	0	0
Response 60	32	170	790	344	0	0	0	0
Response 61	1205	74	22	35	0	0	0	0
Response 62	129	575	201	431	0	0	0	0
Response 63	1178	23	122	13	0	0	0	0
Response 64	226	968	55	87	0	0	0	0
Response 65	1174	31	62	69	0	0	0	0
Response 66	1078	83	31	144	0	0	0	0
Response 67	230	92	792	222	0	0	0	0
Response 68	200	49	825	262	0	0	0	0
Response 69	145	48	827	316	0	0	0	0
Response 7	21	78	43	1194	0	0	0	0
Response 70	1261	68	7	0	0	0	0	0
Response 71	97	69	315	855	0	0	0	0
Response 72	152	302	110	772	0	0	0	0
Response 73	119	358	164	695	0	0	0	0
Response 74	281	124	332	599	0	0	0	0
Response 75	216	470	542	108	0	0	0	0
Response 76	94	1172	8	62	0	0	0	0
Response 77	205	998	50	83	0	0	0	0
Response 78	89	484	710	53	0	0	0	0
Response 79	101	86	1121	28	0	0	0	0
Response 8	211	1041	57	27	0	0	0	0
Response 80	162	250	79	845	0	0	0	0
Response 81	61	522	21	732	0	0	0	0
Response 82	55	3	6	1272	0	0	0	0
Response 83	10	993	136	197	0	0	0	0
Response 84	897	154	24	261	0	0	0	0
Response 85	43	136	541	616	0	0	0	0
Response 86	147	296	697	196	0	0	0	0
Response 87	271	87	14	10	87	11	157	699
Response 88	1211	13	106	6	0	0	0	0
Response 89	3	19	26	1288	0	0	0	0
Response 9	1126	25	155	30	0	0	0	0
Response 90	911	124	174	127	0	0	0	0
Response 91	141	831	246	118	0	0	0	0
Response 92	35	483	748	70	0	0	0	0
Response 93	21	62	826	427	0	0	0	0
Response 94	18	1083	166	69	0	0	0	0
Response 95	28	99	127	1082	0	0	0	0
Response 96	17	26	35	1258	0	0	0	0
Response 97	1319	4	12	1	0	0	0	0
Response 98	734	210	82	310	0	0	0	0
Response 99	1003	88	207	38	0	0	0	0

Form 4 Analysis

Classical Test Theory Results

CTT Summary

Form4_CTT <- ctt_analysis(Form4)
Form4_problematic <- identify_problematic_items(Form4_CTT)

Form4_CTT %>%
  mutate(problematic = ifelse(item %in% Form4_problematic, "Yes", "No")) %>%
  select(item, mean, sd, problematic) %>%
  kable(caption = "Classical Test Theory Results for Form 4", digits = 3) %>%
  kable_styling(bootstrap_options = c("striped", "hover", "condensed", "responsive")) %>%
  row_spec(which(Form4_CTT$item %in% Form4_problematic), background = "yellow")

Classical Test Theory Results for Form 4

	item	mean	sd	problematic
ASMTEN00000102-090025-03	ASMTEN00000102-090025-03	0.926	0.262	Yes
ASMTEN00000102-090028-01	ASMTEN00000102-090028-01	0.762	0.426	No
ASMTEN00000102-090050	ASMTEN00000102-090050	0.764	0.425	No
ASMTEN00000102-090095-01	ASMTEN00000102-090095-01	0.958	0.201	Yes
ASMTEN00000102-090109	ASMTEN00000102-090109	0.339	0.474	Yes
ASMTEN00008102-060002	ASMTEN00008102-060002	0.860	0.347	No
ASMTEN00008102-060003	ASMTEN00008102-060003	0.751	0.433	No
ASMTEN00008102-060005	ASMTEN00008102-060005	0.869	0.337	No
ASMTEN00008102-060007	ASMTEN00008102-060007	0.659	0.474	No
ASMTEN00008103-060001	ASMTEN00008103-060001	0.565	0.496	No
ASMTEN00008103-060002	ASMTEN00008103-060002	0.470	0.499	No
ASMTEN00008103-060003	ASMTEN00008103-060003	0.996	0.060	Yes
ASMTEN00008103-060005	ASMTEN00008103-060005	0.729	0.444	No
ASMTEN00008103-060008	ASMTEN00008103-060008	0.439	0.496	No
ASMTEN00008104-060001	ASMTEN00008104-060001	0.462	0.499	No
ASMTEN00008104-060009	ASMTEN00008104-060009	0.977	0.149	Yes
ASMTEN00008104-060010	ASMTEN00008104-060010	0.971	0.168	Yes
ASMTEN00008104-060011	ASMTEN00008104-060011	0.996	0.066	Yes
ASMTEN00008105-060002	ASMTEN00008105-060002	0.620	0.486	No
ASMTEN00008105-060004	ASMTEN00008105-060004	0.946	0.226	Yes
ASMTEN00008105-060007	ASMTEN00008105-060007	0.579	0.494	No
ASMTEN00008105-060009	ASMTEN00008105-060009	0.799	0.401	No
ASMTEN00008106-060001	ASMTEN00008106-060001	0.976	0.154	Yes
ASMTEN00008106-060002	ASMTEN00008106-060002	0.956	0.205	Yes
ASMTEN00008106-060003	ASMTEN00008106-060003	0.978	0.146	Yes
ASMTEN00008106-060004	ASMTEN00008106-060004	0.961	0.193	Yes
ASMTEN00008201-060001	ASMTEN00008201-060001	0.582	0.493	No
ASMTEN00008201-060002	ASMTEN00008201-060002	0.611	0.488	No
ASMTEN00008202-060003	ASMTEN00008202-060003	0.521	0.500	No
ASMTEN00008202-060005	ASMTEN00008202-060005	0.530	0.499	No
ASMTEN00008202-060006	ASMTEN00008202-060006	0.688	0.463	No
ASMTEN00008202-060008	ASMTEN00008202-060008	0.595	0.491	No
ASMTEN00008202-060011	ASMTEN00008202-060011	0.642	0.480	No
ASMTEN00008202-060014	ASMTEN00008202-060014	0.937	0.243	Yes
ASMTEN00008202-060015	ASMTEN00008202-060015	0.727	0.446	No
ASMTEN00008202-060016	ASMTEN00008202-060016	0.933	0.250	Yes
ASMTEN00008203-060002	ASMTEN00008203-060002	0.610	0.488	No
ASMTEN00008203-060005	ASMTEN00008203-060005	0.526	0.499	No
ASMTEN00008203-060006	ASMTEN00008203-060006	0.811	0.392	No
ASMTEN00008203-060007	ASMTEN00008203-060007	0.777	0.416	No
ASMTEN00008203-060013	ASMTEN00008203-060013	0.620	0.485	No
ASMTEN00008204-060002	ASMTEN00008204-060002	0.626	0.484	No
ASMTEN00008204-060003	ASMTEN00008204-060003	0.751	0.433	No
ASMTEN00008204-060006	ASMTEN00008204-060006	0.435	0.496	No
ASMTEN00008204-060007	ASMTEN00008204-060007	0.665	0.472	No
ASMTEN00008204-060010	ASMTEN00008204-060010	0.610	0.488	No
ASMTEN00008205-060007	ASMTEN00008205-060007	0.771	0.420	No
ASMTEN00008205-060009	ASMTEN00008205-060009	0.467	0.499	No
ASMTEN00008205-060010	ASMTEN00008205-060010	0.886	0.318	No
ASMTEN00008205-060014	ASMTEN00008205-060014	0.319	0.466	Yes
ASMTEN00008205-060016	ASMTEN00008205-060016	0.336	0.472	Yes
ASMTEN00008206-060001	ASMTEN00008206-060001	0.751	0.433	No
ASMTEN00008206-060002	ASMTEN00008206-060002	0.591	0.492	No
ASMTEN00008206-060003	ASMTEN00008206-060003	0.693	0.461	No
ASMTEN00008206-060004	ASMTEN00008206-060004	0.885	0.320	No
ASMTEN00008206-060005	ASMTEN00008206-060005	0.966	0.180	Yes
ASMTEN00008207-060001	ASMTEN00008207-060001	0.771	0.420	No
ASMTEN00008207-060002	ASMTEN00008207-060002	0.779	0.415	No
ASMTEN00008207-060003	ASMTEN00008207-060003	0.918	0.274	Yes
ASMTEN00008207-060005-02	ASMTEN00008207-060005-02	0.741	0.438	No
ASMTEN00008207-060011	ASMTEN00008207-060011	0.821	0.383	No
ASMTEN00008208-060003	ASMTEN00008208-060003	0.718	0.450	No
ASMTEN00008208-060004	ASMTEN00008208-060004	0.597	0.491	No
ASMTEN00008208-060005	ASMTEN00008208-060005	0.539	0.499	No
ASMTEN00008208-060008	ASMTEN00008208-060008	0.909	0.288	Yes
ASMTEN00008209-060001	ASMTEN00008209-060001	0.531	0.499	No
ASMTEN00008209-060003	ASMTEN00008209-060003	0.886	0.318	No
ASMTEN00008209-060004	ASMTEN00008209-060004	0.806	0.395	No
ASMTEN00008209-060005	ASMTEN00008209-060005	0.541	0.498	No
ASMTEN00008209-060006	ASMTEN00008209-060006	0.585	0.493	No
ASMTEN00008301-070001	ASMTEN00008301-070001	0.624	0.485	No
ASMTEN00008301-070002	ASMTEN00008301-070002	0.500	0.500	No
ASMTEN00008301-070003	ASMTEN00008301-070003	0.750	0.433	No
ASMTEN00008301-070004	ASMTEN00008301-070004	0.931	0.254	Yes
ASMTEN00008301-070006	ASMTEN00008301-070006	0.563	0.496	No
ASMTEN00008302-070001	ASMTEN00008302-070001	0.405	0.491	Yes
ASMTEN00008302-070002	ASMTEN00008302-070002	0.899	0.301	Yes
ASMTEN00008302-070008	ASMTEN00008302-070008	0.769	0.422	No
ASMTEN00008303-070001	ASMTEN00008303-070001	0.724	0.447	No
ASMTEN00008303-070002	ASMTEN00008303-070002	0.541	0.498	No
ASMTEN00008303-070003	ASMTEN00008303-070003	0.868	0.339	No
ASMTEN00008303-070006	ASMTEN00008303-070006	0.646	0.478	No
ASMTEN00008303-070008	ASMTEN00008303-070008	0.850	0.357	No
ASMTEN00008303-070009	ASMTEN00008303-070009	0.943	0.232	Yes
ASMTEN00008304-070001	ASMTEN00008304-070001	0.744	0.436	No
ASMTEN00008304-070002	ASMTEN00008304-070002	0.313	0.464	Yes
ASMTEN00008304-070004	ASMTEN00008304-070004	0.403	0.491	Yes
ASMTEN00008304-070012	ASMTEN00008304-070012	0.363	0.481	Yes
ASMTEN00008306-070001	ASMTEN00008306-070001	0.422	0.494	No
ASMTEN00008306-070003	ASMTEN00008306-070003	0.977	0.151	Yes
ASMTEN00008306-070005	ASMTEN00008306-070005	0.732	0.443	No
ASMTEN00008306-070009	ASMTEN00008306-070009	0.628	0.483	No
ASMTEN00008306-070010	ASMTEN00008306-070010	0.565	0.496	No
ASMTEN00008307-070001	ASMTEN00008307-070001	0.640	0.480	No
ASMTEN00008307-070005	ASMTEN00008307-070005	0.827	0.378	No
ASMTEN00008307-070007	ASMTEN00008307-070007	0.659	0.474	No
ASMTEN00008308-070003	ASMTEN00008308-070003	0.986	0.117	Yes
ASMTEN00008308-070005	ASMTEN00008308-070005	0.735	0.442	No
ASMTEN00008308-070006	ASMTEN00008308-070006	0.589	0.492	No
ASMTEN00008308-070007	ASMTEN00008308-070007	0.747	0.435	No
ASMTEN00008308-070011	ASMTEN00008308-070011	0.753	0.431	No
ASMTEN00008308-070012	ASMTEN00008308-070012	0.685	0.465	No
ASMTEN00008308-070013	ASMTEN00008308-070013	0.380	0.486	Yes
ASMTEN00008309-070001	ASMTEN00008309-070001	0.822	0.382	No
ASMTEN00008309-070002	ASMTEN00008309-070002	0.478	0.500	No
ASMTEN00008401-070001	ASMTEN00008401-070001	0.633	0.482	No
ASMTEN00008401-070002	ASMTEN00008401-070002	0.892	0.311	Yes
ASMTEN00008401-070003	ASMTEN00008401-070003	0.568	0.496	No
ASMTEN00008401-070004	ASMTEN00008401-070004	0.948	0.222	Yes
ASMTEN00008402-070002	ASMTEN00008402-070002	0.330	0.470	Yes
ASMTEN00008402-070005	ASMTEN00008402-070005	0.493	0.500	No
ASMTEN00008402-070016	ASMTEN00008402-070016	0.478	0.500	No
ASMTEN00008402-070017	ASMTEN00008402-070017	0.407	0.492	Yes
ASMTEN00008403-070001	ASMTEN00008403-070001	0.339	0.474	Yes
ASMTEN00008403-070003	ASMTEN00008403-070003	0.301	0.459	Yes
ASMTEN00008403-070005	ASMTEN00008403-070005	0.590	0.492	No
ASMTEN00008403-070007	ASMTEN00008403-070007	0.874	0.331	No
ASMTEN00008405-070001	ASMTEN00008405-070001	0.931	0.253	Yes
ASMTEN00008405-070002	ASMTEN00008405-070002	0.609	0.488	No
ASMTEN00008405-070005	ASMTEN00008405-070005	0.893	0.309	Yes
ASMTEN00008405-070007	ASMTEN00008405-070007	0.705	0.456	No
ASMTEN00008406-070004	ASMTEN00008406-070004	0.731	0.444	No
ASMTEN00008406-070005	ASMTEN00008406-070005	0.447	0.497	No
ASMTEN00008406-070006	ASMTEN00008406-070006	0.925	0.264	Yes
ASMTEN00008406-070008	ASMTEN00008406-070008	0.635	0.482	No

Problematic Items

kable(data.frame(Problematic_Items = Form4_problematic),
      caption = "Problematic Items for Form 4") %>%
  kable_styling(bootstrap_options = c("striped", "hover", "condensed", "responsive"))

Problematic Items for Form 4

Problematic_Items
ASMTEN00000102-090025-03
ASMTEN00000102-090095-01
ASMTEN00000102-090109
ASMTEN00008103-060003
ASMTEN00008104-060009
ASMTEN00008104-060010
ASMTEN00008104-060011
ASMTEN00008105-060004
ASMTEN00008106-060001
ASMTEN00008106-060002
ASMTEN00008106-060003
ASMTEN00008106-060004
ASMTEN00008202-060014
ASMTEN00008202-060016
ASMTEN00008205-060014
ASMTEN00008205-060016
ASMTEN00008206-060005
ASMTEN00008207-060003
ASMTEN00008208-060008
ASMTEN00008301-070004
ASMTEN00008302-070001
ASMTEN00008302-070002
ASMTEN00008303-070009
ASMTEN00008304-070002
ASMTEN00008304-070004
ASMTEN00008304-070012
ASMTEN00008306-070003
ASMTEN00008308-070003
ASMTEN00008308-070013
ASMTEN00008401-070002
ASMTEN00008401-070004
ASMTEN00008402-070002
ASMTEN00008402-070017
ASMTEN00008403-070001
ASMTEN00008403-070003
ASMTEN00008405-070001
ASMTEN00008405-070005
ASMTEN00008406-070006

Item Response Theory Results

Test Information Curve

Form4_clean <- remove_problematic_items(Form4, Form4_problematic)
Form4_IRT <- mirt(Form4_clean, 1, itemtype = "2PL")

## 
Iteration: 1, Log-Lik: -69730.369, Max-Change: 1.21411
Iteration: 2, Log-Lik: -68210.904, Max-Change: 0.56191
Iteration: 3, Log-Lik: -67756.303, Max-Change: 0.30944
Iteration: 4, Log-Lik: -67604.849, Max-Change: 0.25102
Iteration: 5, Log-Lik: -67585.188, Max-Change: 0.04834
Iteration: 6, Log-Lik: -67580.632, Max-Change: 0.03076
Iteration: 7, Log-Lik: -67579.451, Max-Change: 0.01656
Iteration: 8, Log-Lik: -67578.981, Max-Change: 0.01793
Iteration: 9, Log-Lik: -67578.785, Max-Change: 0.00909
Iteration: 10, Log-Lik: -67578.636, Max-Change: 0.00783
Iteration: 11, Log-Lik: -67578.585, Max-Change: 0.00605
Iteration: 12, Log-Lik: -67578.542, Max-Change: 0.00427
Iteration: 13, Log-Lik: -67578.497, Max-Change: 0.00292
Iteration: 14, Log-Lik: -67578.486, Max-Change: 0.00193
Iteration: 15, Log-Lik: -67578.479, Max-Change: 0.00102
Iteration: 16, Log-Lik: -67578.476, Max-Change: 0.00209
Iteration: 17, Log-Lik: -67578.471, Max-Change: 0.00084
Iteration: 18, Log-Lik: -67578.469, Max-Change: 0.00105
Iteration: 19, Log-Lik: -67578.468, Max-Change: 0.00070
Iteration: 20, Log-Lik: -67578.467, Max-Change: 0.00124
Iteration: 21, Log-Lik: -67578.467, Max-Change: 0.00037
Iteration: 22, Log-Lik: -67578.467, Max-Change: 0.00033
Iteration: 23, Log-Lik: -67578.466, Max-Change: 0.00076
Iteration: 24, Log-Lik: -67578.466, Max-Change: 0.00027
Iteration: 25, Log-Lik: -67578.466, Max-Change: 0.00024
Iteration: 26, Log-Lik: -67578.465, Max-Change: 0.00059
Iteration: 27, Log-Lik: -67578.465, Max-Change: 0.00085
Iteration: 28, Log-Lik: -67578.465, Max-Change: 0.00019
Iteration: 29, Log-Lik: -67578.465, Max-Change: 0.00047
Iteration: 30, Log-Lik: -67578.464, Max-Change: 0.00067
Iteration: 31, Log-Lik: -67578.464, Max-Change: 0.00016
Iteration: 32, Log-Lik: -67578.464, Max-Change: 0.00040
Iteration: 33, Log-Lik: -67578.464, Max-Change: 0.00057
Iteration: 34, Log-Lik: -67578.464, Max-Change: 0.00013
Iteration: 35, Log-Lik: -67578.464, Max-Change: 0.00033
Iteration: 36, Log-Lik: -67578.463, Max-Change: 0.00048
Iteration: 37, Log-Lik: -67578.463, Max-Change: 0.00011
Iteration: 38, Log-Lik: -67578.463, Max-Change: 0.00027
Iteration: 39, Log-Lik: -67578.463, Max-Change: 0.00039
Iteration: 40, Log-Lik: -67578.463, Max-Change: 0.00009

plot(Form4_IRT, type = "info", main = "Test Information Curve for Form 4")

Item Parameters

Form4_Params <- get_item_params(Form4_IRT)
kable(Form4_Params, caption = "Item Parameters for Form 4", digits = 3) %>%
  kable_styling(bootstrap_options = c("striped", "hover", "condensed", "responsive"))

Item Parameters for Form 4

	item	items.a	items.b	items.g	items.u
ASMTEN00000102-090028-01	ASMTEN00000102-090028-01	1.255	-1.198	0	1
ASMTEN00000102-090050	ASMTEN00000102-090050	0.003	-358.379	0	1
ASMTEN00008102-060002	ASMTEN00008102-060002	1.409	-1.653	0	1
ASMTEN00008102-060003	ASMTEN00008102-060003	-0.618	1.916	0	1
ASMTEN00008102-060005	ASMTEN00008102-060005	0.911	-2.351	0	1
ASMTEN00008102-060007	ASMTEN00008102-060007	0.927	-0.865	0	1
ASMTEN00008103-060001	ASMTEN00008103-060001	-1.119	0.229	0	1
ASMTEN00008103-060002	ASMTEN00008103-060002	0.554	0.208	0	1
ASMTEN00008103-060005	ASMTEN00008103-060005	1.626	-0.903	0	1
ASMTEN00008103-060008	ASMTEN00008103-060008	-0.212	-1.171	0	1
ASMTEN00008104-060001	ASMTEN00008104-060001	0.567	0.268	0	1
ASMTEN00008105-060002	ASMTEN00008105-060002	0.319	-1.577	0	1
ASMTEN00008105-060007	ASMTEN00008105-060007	1.361	-0.379	0	1
ASMTEN00008105-060009	ASMTEN00008105-060009	1.064	-1.561	0	1
ASMTEN00008201-060001	ASMTEN00008201-060001	1.179	-0.411	0	1
ASMTEN00008201-060002	ASMTEN00008201-060002	1.170	-0.536	0	1
ASMTEN00008202-060003	ASMTEN00008202-060003	1.671	-0.164	0	1
ASMTEN00008202-060005	ASMTEN00008202-060005	0.474	-0.280	0	1
ASMTEN00008202-060006	ASMTEN00008202-060006	0.513	-1.646	0	1
ASMTEN00008202-060008	ASMTEN00008202-060008	0.020	-18.962	0	1
ASMTEN00008202-060011	ASMTEN00008202-060011	0.390	-1.557	0	1
ASMTEN00008202-060015	ASMTEN00008202-060015	1.334	-0.989	0	1
ASMTEN00008203-060002	ASMTEN00008203-060002	-0.393	1.173	0	1
ASMTEN00008203-060005	ASMTEN00008203-060005	1.636	-0.180	0	1
ASMTEN00008203-060006	ASMTEN00008203-060006	0.423	-3.567	0	1
ASMTEN00008203-060007	ASMTEN00008203-060007	0.345	-3.718	0	1
ASMTEN00008203-060013	ASMTEN00008203-060013	-0.281	1.774	0	1
ASMTEN00008204-060002	ASMTEN00008204-060002	0.254	-2.070	0	1
ASMTEN00008204-060003	ASMTEN00008204-060003	1.302	-1.113	0	1
ASMTEN00008204-060006	ASMTEN00008204-060006	0.567	0.471	0	1
ASMTEN00008204-060007	ASMTEN00008204-060007	0.456	-1.582	0	1
ASMTEN00008204-060010	ASMTEN00008204-060010	1.596	-0.469	0	1
ASMTEN00008205-060007	ASMTEN00008205-060007	1.879	-1.002	0	1
ASMTEN00008205-060009	ASMTEN00008205-060009	0.381	0.342	0	1
ASMTEN00008205-060010	ASMTEN00008205-060010	0.403	-5.231	0	1
ASMTEN00008206-060001	ASMTEN00008206-060001	0.394	-2.902	0	1
ASMTEN00008206-060002	ASMTEN00008206-060002	-0.611	0.628	0	1
ASMTEN00008206-060003	ASMTEN00008206-060003	0.426	-1.994	0	1
ASMTEN00008206-060004	ASMTEN00008206-060004	-0.573	3.783	0	1
ASMTEN00008207-060001	ASMTEN00008207-060001	1.165	-1.305	0	1
ASMTEN00008207-060002	ASMTEN00008207-060002	1.581	-1.122	0	1
ASMTEN00008207-060005-02	ASMTEN00008207-060005-02	1.257	-1.091	0	1
ASMTEN00008207-060011	ASMTEN00008207-060011	0.277	-5.578	0	1
ASMTEN00008208-060003	ASMTEN00008208-060003	0.288	-3.296	0	1
ASMTEN00008208-060004	ASMTEN00008208-060004	0.207	-1.922	0	1
ASMTEN00008208-060005	ASMTEN00008208-060005	1.470	-0.221	0	1
ASMTEN00008209-060001	ASMTEN00008209-060001	-0.336	0.370	0	1
ASMTEN00008209-060003	ASMTEN00008209-060003	1.600	-1.700	0	1
ASMTEN00008209-060004	ASMTEN00008209-060004	1.384	-1.351	0	1
ASMTEN00008209-060005	ASMTEN00008209-060005	0.364	-0.479	0	1
ASMTEN00008209-060006	ASMTEN00008209-060006	2.185	-0.363	0	1
ASMTEN00008301-070001	ASMTEN00008301-070001	0.433	-1.231	0	1
ASMTEN00008301-070002	ASMTEN00008301-070002	-0.157	-0.012	0	1
ASMTEN00008301-070003	ASMTEN00008301-070003	1.435	-1.050	0	1
ASMTEN00008301-070006	ASMTEN00008301-070006	2.361	-0.298	0	1
ASMTEN00008302-070008	ASMTEN00008302-070008	1.199	-1.267	0	1
ASMTEN00008303-070001	ASMTEN00008303-070001	0.216	-4.513	0	1
ASMTEN00008303-070002	ASMTEN00008303-070002	1.063	-0.244	0	1
ASMTEN00008303-070003	ASMTEN00008303-070003	0.949	-2.262	0	1
ASMTEN00008303-070006	ASMTEN00008303-070006	0.057	-10.464	0	1
ASMTEN00008303-070008	ASMTEN00008303-070008	0.601	-3.074	0	1
ASMTEN00008304-070001	ASMTEN00008304-070001	0.568	-2.012	0	1
ASMTEN00008306-070001	ASMTEN00008306-070001	-0.222	-1.444	0	1
ASMTEN00008306-070005	ASMTEN00008306-070005	0.409	-2.556	0	1
ASMTEN00008306-070009	ASMTEN00008306-070009	1.154	-0.616	0	1
ASMTEN00008306-070010	ASMTEN00008306-070010	0.827	-0.400	0	1
ASMTEN00008307-070001	ASMTEN00008307-070001	1.674	-0.566	0	1
ASMTEN00008307-070005	ASMTEN00008307-070005	-0.593	2.823	0	1
ASMTEN00008307-070007	ASMTEN00008307-070007	0.120	-5.536	0	1
ASMTEN00008308-070005	ASMTEN00008308-070005	1.572	-0.941	0	1
ASMTEN00008308-070006	ASMTEN00008308-070006	0.155	-2.331	0	1
ASMTEN00008308-070007	ASMTEN00008308-070007	1.026	-1.276	0	1
ASMTEN00008308-070011	ASMTEN00008308-070011	0.302	-3.774	0	1
ASMTEN00008308-070012	ASMTEN00008308-070012	0.469	-1.744	0	1
ASMTEN00008309-070001	ASMTEN00008309-070001	0.877	-1.987	0	1
ASMTEN00008309-070002	ASMTEN00008309-070002	1.286	0.016	0	1
ASMTEN00008401-070001	ASMTEN00008401-070001	0.432	-1.330	0	1
ASMTEN00008401-070003	ASMTEN00008401-070003	0.147	-1.860	0	1
ASMTEN00008402-070005	ASMTEN00008402-070005	0.560	0.032	0	1
ASMTEN00008402-070016	ASMTEN00008402-070016	-0.111	-0.783	0	1
ASMTEN00008403-070005	ASMTEN00008403-070005	-0.272	1.364	0	1
ASMTEN00008403-070007	ASMTEN00008403-070007	0.690	-3.034	0	1
ASMTEN00008405-070002	ASMTEN00008405-070002	0.542	-0.888	0	1
ASMTEN00008405-070007	ASMTEN00008405-070007	1.189	-0.953	0	1
ASMTEN00008406-070004	ASMTEN00008406-070004	1.078	-1.147	0	1
ASMTEN00008406-070005	ASMTEN00008406-070005	0.368	0.589	0	1
ASMTEN00008406-070008	ASMTEN00008406-070008	1.858	-0.531	0	1

Response Frequencies

Form4_freq <- calculate_frequencies_wide(Form4_respcode)
kable(Form4_freq, caption = "Response Frequencies for Form 4") %>%
  kable_styling(bootstrap_options = c("striped", "hover", "condensed", "responsive"))

Response Frequencies for Form 4

Item	Response_1	Response_2	Response_3	Response_4	Response_5	Response_6	Response_7	Response_8
Response 1	25	51	1240	20	0	0	0	0
Response 10	756	133	392	55	0	0	0	0
Response 100	998	91	208	39	0	0	0	0
Response 101	1009	70	86	171	0	0	0	0
Response 102	69	156	916	195	0	0	0	0
Response 103	312	364	152	508	0	0	0	0
Response 104	49	79	107	1101	0	0	0	0
Response 105	302	41	643	350	0	0	0	0
Response 106	54	840	109	333	0	0	0	0
Response 107	32	96	16	1192	0	0	0	0
Response 108	125	298	757	156	0	0	0	0
Response 109	26	1267	5	38	0	0	0	0
Response 11	205	239	264	628	0	0	0	0
Response 110	263	397	443	233	0	0	0	0
Response 111	25	655	456	200	0	0	0	0
Response 112	639	330	203	164	0	0	0	0
Response 113	216	545	194	381	0	0	0	0
Response 114	144	360	373	459	0	0	0	0
Response 115	75	395	565	301	0	0	0	0
Response 116	790	292	105	149	0	0	0	0
Response 117	32	1169	98	37	0	0	0	0
Response 118	23	39	1243	31	0	0	0	0
Response 119	17	812	355	152	0	0	0	0
Response 12	2	1332	1	1	0	0	0	0
Response 120	59	18	67	1192	0	0	0	0
Response 121	83	46	261	946	0	0	0	0
Response 122	60	58	977	241	0	0	0	0
Response 123	322	56	600	358	0	0	0	0
Response 124	1238	45	23	30	0	0	0	0
Response 125	229	850	61	196	0	0	0	0
Response 13	48	247	972	69	0	0	0	0
Response 14	51	513	185	587	0	0	0	0
Response 15	469	201	611	55	0	0	0	0
Response 16	1306	6	1	23	0	0	0	0
Response 17	7	33	1	1295	0	0	0	0
Response 18	1330	2	3	1	0	0	0	0
Response 19	42	28	445	821	0	0	0	0
Response 2	183	115	19	1019	0	0	0	0
Response 20	1264	68	4	0	0	0	0	0
Response 21	33	776	415	112	0	0	0	0
Response 22	65	188	1070	13	0	0	0	0
Response 23	6	13	1304	13	0	0	0	0
Response 24	1278	41	13	4	0	0	0	0
Response 25	1307	16	10	3	0	0	0	0
Response 26	1287	22	5	22	0	0	0	0
Response 27	35	463	781	57	0	0	0	0
Response 28	352	48	122	814	0	0	0	0
Response 29	80	697	295	264	0	0	0	0
Response 3	73	134	1027	102	0	0	0	0
Response 30	702	347	199	88	0	0	0	0
Response 31	119	148	157	912	0	0	0	0
Response 32	794	181	203	158	0	0	0	0
Response 33	853	9	453	21	0	0	0	0
Response 34	1252	7	46	31	0	0	0	0
Response 35	69	974	68	225	0	0	0	0
Response 36	1246	3	80	7	0	0	0	0
Response 37	44	98	381	813	0	0	0	0
Response 38	708	76	413	139	0	0	0	0
Response 39	8	1085	9	234	0	0	0	0
Response 4	1279	15	26	16	0	0	0	0
Response 40	39	191	1039	67	0	0	0	0
Response 41	827	262	112	135	0	0	0	0
Response 42	199	224	77	836	0	0	0	0
Response 43	152	1001	80	103	0	0	0	0
Response 44	314	582	240	200	0	0	0	0
Response 45	73	888	283	92	0	0	0	0
Response 46	36	101	813	386	0	0	0	0
Response 47	51	1027	182	76	0	0	0	0
Response 48	623	604	68	41	0	0	0	0
Response 49	78	34	1182	42	0	0	0	0
Response 5	275	335	451	275	0	0	0	0
Response 50	119	451	340	426	0	0	0	0
Response 51	263	227	395	451	0	0	0	0
Response 52	76	1001	47	212	0	0	0	0
Response 53	142	89	783	322	0	0	0	0
Response 54	926	198	118	94	0	0	0	0
Response 55	1179	72	7	78	0	0	0	0
Response 56	8	24	10	1294	0	0	0	0
Response 57	80	188	1031	37	0	0	0	0
Response 58	54	146	1040	96	0	0	0	0
Response 59	1226	50	10	50	0	0	0	0
Response 6	149	14	25	1148	0	0	0	0
Response 60	91	118	982	145	0	0	0	0
Response 61	94	33	1098	111	0	0	0	0
Response 62	344	956	27	9	0	0	0	0
Response 63	16	167	803	350	0	0	0	0
Response 64	717	364	31	224	0	0	0	0
Response 65	1219	18	95	4	0	0	0	0
Response 66	169	42	714	411	0	0	0	0
Response 67	1184	37	66	49	0	0	0	0
Response 68	1076	59	26	175	0	0	0	0
Response 69	272	81	723	260	0	0	0	0
Response 7	278	39	1005	14	0	0	0	0
Response 70	225	50	783	278	0	0	0	0
Response 71	117	60	827	332	0	0	0	0
Response 72	667	278	150	241	0	0	0	0
Response 73	1001	88	143	104	0	0	0	0
Response 74	1248	81	7	0	0	0	0	0
Response 75	178	292	109	757	0	0	0	0
Response 76	340	142	319	535	0	0	0	0
Response 77	91	11	1203	31	0	0	0	0
Response 78	181	1030	37	88	0	0	0	0
Response 79	969	294	59	14	0	0	0	0
Response 8	22	117	40	1157	0	0	0	0
Response 80	83	495	720	38	0	0	0	0
Response 81	69	78	1163	26	0	0	0	0
Response 82	139	249	84	864	0	0	0	0
Response 83	77	21	1142	96	0	0	0	0
Response 84	67	4	2	1263	0	0	0	0
Response 85	147	988	178	23	0	0	0	0
Response 86	216	456	412	252	0	0	0	0
Response 87	185	539	368	244	0	0	0	0
Response 88	225	479	537	95	0	0	0	0
Response 89	515	74	560	187	0	0	0	0
Response 9	92	878	92	274	0	0	0	0
Response 90	2	14	14	1306	0	0	0	0
Response 91	980	144	47	165	0	0	0	0
Response 92	153	837	226	120	0	0	0	0
Response 93	41	468	755	72	0	0	0	0
Response 94	176	27	41	9	684	141	201	57
Response 95	26	88	116	1106	0	0	0	0
Response 96	48	288	879	121	0	0	0	0
Response 97	1319	4	9	4	0	0	0	0
Response 98	14	28	313	981	0	0	0	0
Response 99	785	275	109	167	0	0	0	0

Reliability Summary

# Function to calculate Cronbach's alpha
calculate_alpha <- function(form_data) {
  alpha_result <- psych::alpha(form_data)
  return(alpha_result$total$std.alpha)
}

reliability_results <- data.frame(
  Form = c("Form 1", "Form 2", "Form 3", "Form 4"),
  Cronbachs_Alpha = c(
    calculate_alpha(Form1),
    calculate_alpha(Form2),
    calculate_alpha(Form3),
    calculate_alpha(Form4)
  )
)

## Some items ( ASMTEN00008103-060001 ASMTEN00008105-060008 ASMTEN00008105-060011 ASMTEN00008203-060013 ASMTEN00008206-060002 ASMTEN00008209-060001 ASMTEN00008301-070007 ASMTEN00008303-070005 ASMTEN00008307-070002 ASMTEN00008307-070005 ASMTEN00008308-070013 ASMTEN00008402-070009-01 ASMTEN00008403-070002 ) were negatively correlated with the total scale and 
## probably should be reversed.  
## To do this, run the function again with the 'check.keys=TRUE' optionSome items ( ASMTEN00000102-090022-01 ASMTEN00008102-060003 ASMTEN00008103-060001 ASMTEN00008103-060004 ASMTEN00008105-060011 ASMTEN00008203-060002 ASMTEN00008203-060013 ASMTEN00008205-060014 ASMTEN00008206-060004 ASMTEN00008302-070009 ASMTEN00008303-070005 ASMTEN00008307-070005 ASMTEN00008402-070017 ASMTEN00008403-070002 ) were negatively correlated with the total scale and 
## probably should be reversed.  
## To do this, run the function again with the 'check.keys=TRUE' optionSome items ( ASMTEN00000102-090022-01 ASMTEN00008103-060001 ASMTEN00008104-060008 ASMTEN00008202-060010 ASMTEN00008203-060002 ASMTEN00008301-070007 ASMTEN00008302-070003 ASMTEN00008302-070004 ASMTEN00008303-070007 ASMTEN00008307-070002 ASMTEN00008307-070004 ASMTEN00008307-070005 ASMTEN00008403-070008 ) were negatively correlated with the total scale and 
## probably should be reversed.  
## To do this, run the function again with the 'check.keys=TRUE' optionSome items ( ASMTEN00008102-060003 ASMTEN00008103-060001 ASMTEN00008203-060002 ASMTEN00008206-060002 ASMTEN00008209-060001 ASMTEN00008304-070012 ASMTEN00008306-070001 ASMTEN00008307-070005 ASMTEN00008403-070005 ) were negatively correlated with the total scale and 
## probably should be reversed.  
## To do this, run the function again with the 'check.keys=TRUE' option

kable(reliability_results, 
      caption = "Reliability (Cronbach's Alpha) for All Forms", 
      digits = 3) %>%
  kable_styling(bootstrap_options = c("striped", "hover", "condensed", "responsive"))

Reliability (Cronbach’s Alpha) for All Forms

Form	Cronbachs_Alpha
Form 1	0.863
Form 2	0.879
Form 3	0.864
Form 4	0.869

# Calculate and display alpha for cleaned forms
reliability_results_cleaned <- data.frame(
  Form = c("Form 1 (Cleaned)", "Form 2 (Cleaned)", "Form 3 (Cleaned)", "Form 4 (Cleaned)"),
  Cronbachs_Alpha = c(
    calculate_alpha(Form1_clean),
    calculate_alpha(Form2_clean),
    calculate_alpha(Form3_clean),
    calculate_alpha(Form4_clean)
  )
)

## Some items ( ASMTEN00000102-090022-01 ASMTEN00008103-060001 ASMTEN00008202-060013 ASMTEN00008203-060013 ASMTEN00008206-060002 ASMTEN00008209-060001 ASMTEN00008301-070007 ASMTEN00008307-070002 ASMTEN00008307-070005 ASMTEN00008402-070009-01 ) were negatively correlated with the total scale and 
## probably should be reversed.  
## To do this, run the function again with the 'check.keys=TRUE' optionSome items ( ASMTEN00000102-090022-01 ASMTEN00008102-060003 ASMTEN00008103-060001 ASMTEN00008103-060004 ASMTEN00008203-060002 ASMTEN00008203-060013 ASMTEN00008206-060004 ASMTEN00008207-060006 ASMTEN00008208-060002 ASMTEN00008301-070002 ASMTEN00008302-070009 ASMTEN00008307-070005 ASMTEN00008402-070016 ) were negatively correlated with the total scale and 
## probably should be reversed.  
## To do this, run the function again with the 'check.keys=TRUE' optionSome items ( ASMTEN00000102-090022-01 ASMTEN00008103-060001 ASMTEN00008202-060010 ASMTEN00008202-060013 ASMTEN00008203-060002 ASMTEN00008206-060004 ASMTEN00008207-060006 ASMTEN00008301-070007 ASMTEN00008302-070004 ASMTEN00008307-070002 ASMTEN00008307-070004 ASMTEN00008307-070005 ASMTEN00008403-070005 ASMTEN00008403-070008 ) were negatively correlated with the total scale and 
## probably should be reversed.  
## To do this, run the function again with the 'check.keys=TRUE' optionSome items ( ASMTEN00008102-060003 ASMTEN00008103-060001 ASMTEN00008103-060008 ASMTEN00008203-060002 ASMTEN00008203-060013 ASMTEN00008206-060002 ASMTEN00008206-060004 ASMTEN00008209-060001 ASMTEN00008306-070001 ASMTEN00008307-070005 ASMTEN00008403-070005 ) were negatively correlated with the total scale and 
## probably should be reversed.  
## To do this, run the function again with the 'check.keys=TRUE' option

kable(reliability_results_cleaned, 
      caption = "Reliability (Cronbach's Alpha) for All Forms After Removing Problematic Items", 
      digits = 3) %>%
  kable_styling(bootstrap_options = c("striped", "hover", "condensed", "responsive"))

Reliability (Cronbach’s Alpha) for All Forms After Removing Problematic Items

Form	Cronbachs_Alpha
Form 1 (Cleaned)	0.847
Form 2 (Cleaned)	0.862
Form 3 (Cleaned)	0.843
Form 4 (Cleaned)	0.851

Table of Problematic Items

# Collect CTT results and problematic items for all forms
all_ctt_results <- list(
  Form1 = Form1_CTT,
  Form2 = Form2_CTT,
  Form3 = Form3_CTT,
  Form4 = Form4_CTT
)

all_problematic <- list(
  Form1 = Form1_problematic,
  Form2 = Form2_problematic,
  Form3 = Form3_problematic,
  Form4 = Form4_problematic
)

# Get unique item IDs
all_items <- unique(unlist(all_problematic))

# Create the summary data frame
problematic_summary <- data.frame(Item = all_items)

# Fill in the summary for each form
for (form in names(all_problematic)) {
  problematic_summary[[form]] <- sapply(problematic_summary$Item, function(item) {
    if (item %in% all_problematic[[form]]) {
      mean_value <- all_ctt_results[[form]]$mean[all_ctt_results[[form]]$item == item]
      sprintf("%.3f", mean_value)  # Format to 3 decimal places
    } else {
      ""
    }
  })
}

# Sort the data frame by Item
problematic_summary <- problematic_summary[order(problematic_summary$Item),]

# Display the table
kable(problematic_summary, 
      caption = "Summary of Problematic Items Across All Forms (Showing Item Means)") %>%
  kable_styling(bootstrap_options = c("striped", "hover", "condensed", "responsive"))

Summary of Problematic Items Across All Forms (Showing Item Means)

	Item	Form1	Form2	Form3	Form4
38	ASMTEN00000102-090019-01		0.987	0.988
1	ASMTEN00000102-090023-01	0.991	0.986
39	ASMTEN00000102-090025-03		0.926	0.935	0.926
47	ASMTEN00000102-090026-01			0.938
2	ASMTEN00000102-090095-01	0.968	0.965		0.958
48	ASMTEN00000102-090109			0.384	0.339
49	ASMTEN00008102-060001			1.000
3	ASMTEN00008102-060005	0.909		0.896
4	ASMTEN00008103-060003	0.993	0.997	0.996	0.996
5	ASMTEN00008103-060007	0.989
6	ASMTEN00008103-060009	0.894
50	ASMTEN00008104-060008			0.404
40	ASMTEN00008104-060009		0.970		0.977
7	ASMTEN00008104-060010	0.956		0.958	0.971
8	ASMTEN00008104-060011	0.997	0.996	1.000	0.996
41	ASMTEN00008105-060004		0.951		0.946
9	ASMTEN00008105-060008	0.289
42	ASMTEN00008105-060010		0.903
10	ASMTEN00008105-060011	0.305	0.271
11	ASMTEN00008106-060001	0.983	0.982	0.985	0.976
12	ASMTEN00008106-060002	0.957	0.947	0.955	0.956
13	ASMTEN00008106-060003	0.985	0.980	0.979	0.978
14	ASMTEN00008106-060004	0.967	0.959	0.957	0.961
15	ASMTEN00008202-060014	0.928	0.919	0.904	0.937
16	ASMTEN00008202-060016	0.935	0.926	0.917	0.933
17	ASMTEN00008204-060004	0.394
18	ASMTEN00008205-060004	0.951		0.949
43	ASMTEN00008205-060014		0.302		0.319
54	ASMTEN00008205-060016				0.336
51	ASMTEN00008205-060018			0.911
19	ASMTEN00008206-060005	0.980	0.971		0.966
20	ASMTEN00008207-060003	0.915		0.928	0.918
21	ASMTEN00008208-060006	0.900		0.899
55	ASMTEN00008208-060008				0.909
22	ASMTEN00008301-070004	0.942		0.942	0.931
56	ASMTEN00008302-070001				0.405
57	ASMTEN00008302-070002				0.899
23	ASMTEN00008302-070003	0.392		0.401
24	ASMTEN00008303-070005	0.306	0.291
52	ASMTEN00008303-070007			0.390
44	ASMTEN00008303-070009		0.956	0.952	0.943
58	ASMTEN00008304-070002				0.313
59	ASMTEN00008304-070004				0.403
60	ASMTEN00008304-070012				0.363
25	ASMTEN00008306-070002	0.929	0.926	0.905
26	ASMTEN00008306-070003	0.965	0.964	0.965	0.977
27	ASMTEN00008307-070006	0.392
28	ASMTEN00008307-070008	0.959	0.952
53	ASMTEN00008308-070001			0.939
29	ASMTEN00008308-070003	0.985	0.982	0.985	0.986
30	ASMTEN00008308-070013	0.384		0.392	0.380
61	ASMTEN00008401-070002				0.892
31	ASMTEN00008401-070004	0.941	0.952	0.927	0.948
45	ASMTEN00008402-070002		0.322	0.312	0.330
32	ASMTEN00008402-070017	0.402	0.404		0.407
33	ASMTEN00008403-070001	0.317	0.339		0.339
34	ASMTEN00008403-070002	0.216	0.243
35	ASMTEN00008403-070003	0.296	0.291		0.301
36	ASMTEN00008405-070001	0.925	0.917	0.936	0.931
62	ASMTEN00008405-070005				0.893
37	ASMTEN00008406-070003	0.356
46	ASMTEN00008406-070006		0.919	0.914	0.925