MHA data 2024/01/26

Read in the data:

library(tidyverse)
── Attaching packages ─────────────────────────────────────── tidyverse 1.3.2 ──
✔ ggplot2 3.4.0     ✔ purrr   0.3.4
✔ tibble  3.1.7     ✔ dplyr   1.1.0
✔ tidyr   1.2.0     ✔ stringr 1.4.0
✔ readr   2.1.4     ✔ forcats 0.5.1
── Conflicts ────────────────────────────────────────── tidyverse_conflicts() ──
✖ dplyr::filter() masks stats::filter()
✖ dplyr::lag()    masks stats::lag()
library(VGAM)
Loading required package: stats4
Loading required package: splines
df <- read.csv('r-34 data downloader/output_data_.csv')
df <- df |> filter(is.na(reward) == FALSE)
head(df)
  mooclet_id learner_id                                                     arm
1        588      15346    C3 Long Prompt Reminder Clinical TrialZzgot_reminder
2        588      15284    C3 Long Prompt Reminder Clinical TrialZzgot_reminder
3        587      15346   C2 Long Prompt Motivation Clinical TrialZzinspiration
4        587      15284 C2 Long Prompt Motivation Clinical TrialZzno_motivation
5        588      15283    C3 Long Prompt Reminder Clinical TrialZzgot_reminder
6        587      15283 C2 Long Prompt Motivation Clinical TrialZzno_motivation
                         timestamp reward         reward_name
1 2023-12-30 22:00:22.204736+00:00      0 motivation_check_in
2 2023-12-30 22:00:35.502809+00:00      0 motivation_check_in
3 2023-12-30 22:00:48.283833+00:00      0 motivation_check_in
4 2023-12-30 22:01:01.103650+00:00      0 motivation_check_in
5 2023-11-04 16:30:27.194216+00:00      1 motivation_check_in
6 2023-11-04 16:30:49.964350+00:00      1 motivation_check_in
  context_is_weekday context_is_preferred_time context_time_of_day_period
1                  1                         0                  0.6666667
2                  1                         0                  1.0000000
3                  1                         0                  0.6666667
4                  1                         0                  1.0000000
5                  1                         0                  0.3333333
6                  1                         0                  0.3333333
  context_active_last_48 context_study_period context_k10_response_sum_class
1                      1            1.0000000                              1
2                      0            1.0000000                              1
3                      1            1.0000000                              1
4                      0            1.0000000                              1
5                      1            0.3333333                              1
6                      1            0.3333333                              1

Model 1: Modular bandits data are fitting on LM since the reward is multi-class,

could use multi-nomial logistic model, too

B1 model: fitted

df |> 
  filter(mooclet_id == 583) |>
  lm(formula = reward ~ as.factor(arm) +
       context_is_weekday + 
       context_is_preferred_time + 
       context_time_of_day_period + 
       context_active_last_48 + 
       context_study_period + 
       context_k10_response_sum_class) |>
  summary()

Call:
lm(formula = reward ~ as.factor(arm) + context_is_weekday + context_is_preferred_time + 
    context_time_of_day_period + context_active_last_48 + context_study_period + 
    context_k10_response_sum_class, data = filter(df, mooclet_id == 
    583))

Residuals:
     Min       1Q   Median       3Q      Max 
-0.47427 -0.28434  0.04405  0.18298  0.57266 

Coefficients:
                                                           Estimate Std. Error
(Intercept)                                                0.319378   0.416466
as.factor(arm)B1 Modular Link Clinical TrialZzgot_no_link -0.122508   0.085525
context_is_weekday                                         0.017779   0.098357
context_is_preferred_time                                  0.174515   0.093947
context_time_of_day_period                                 0.005664   0.125370
context_active_last_48                                    -0.320568   0.205627
context_study_period                                       0.126482   0.263026
context_k10_response_sum_class                             0.298273   0.257226
                                                          t value Pr(>|t|)  
(Intercept)                                                 0.767   0.4473  
as.factor(arm)B1 Modular Link Clinical TrialZzgot_no_link  -1.432   0.1591  
context_is_weekday                                          0.181   0.8574  
context_is_preferred_time                                   1.858   0.0699 .
context_time_of_day_period                                  0.045   0.9642  
context_active_last_48                                     -1.559   0.1262  
context_study_period                                        0.481   0.6330  
context_k10_response_sum_class                              1.160   0.2525  
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

Residual standard error: 0.2792 on 44 degrees of freedom
  (2 observations deleted due to missingness)
Multiple R-squared:  0.2452,    Adjusted R-squared:  0.1251 
F-statistic: 2.042 on 7 and 44 DF,  p-value: 0.07081

B2 model: fitted:

df |> 
  filter(mooclet_id == 584) |>
  lm(formula = reward ~ as.factor(arm) +
       context_is_weekday + 
       context_is_preferred_time + 
       context_time_of_day_period + 
       context_active_last_48 + 
       context_study_period + 
       context_k10_response_sum_class) |>
  summary()

Call:
lm(formula = reward ~ as.factor(arm) + context_is_weekday + context_is_preferred_time + 
    context_time_of_day_period + context_active_last_48 + context_study_period + 
    context_k10_response_sum_class, data = filter(df, mooclet_id == 
    584))

Residuals:
     Min       1Q   Median       3Q      Max 
-0.45776 -0.26859  0.05657  0.18568  0.57201 

Coefficients:
                                                                     Estimate
(Intercept)                                                           0.11765
as.factor(arm)B2 Modular Rationale Clinical TrialZzmodular_rationale  0.13984
context_is_weekday                                                    0.02042
context_is_preferred_time                                             0.17955
context_time_of_day_period                                            0.02359
context_active_last_48                                               -0.32726
context_study_period                                                  0.07988
context_k10_response_sum_class                                        0.40216
                                                                     Std. Error
(Intercept)                                                             0.40658
as.factor(arm)B2 Modular Rationale Clinical TrialZzmodular_rationale    0.08237
context_is_weekday                                                      0.09746
context_is_preferred_time                                               0.09128
context_time_of_day_period                                              0.12434
context_active_last_48                                                  0.20366
context_study_period                                                    0.26406
context_k10_response_sum_class                                          0.26080
                                                                     t value
(Intercept)                                                            0.289
as.factor(arm)B2 Modular Rationale Clinical TrialZzmodular_rationale   1.698
context_is_weekday                                                     0.210
context_is_preferred_time                                              1.967
context_time_of_day_period                                             0.190
context_active_last_48                                                -1.607
context_study_period                                                   0.302
context_k10_response_sum_class                                         1.542
                                                                     Pr(>|t|)  
(Intercept)                                                            0.7737  
as.factor(arm)B2 Modular Rationale Clinical TrialZzmodular_rationale   0.0966 .
context_is_weekday                                                     0.8350  
context_is_preferred_time                                              0.0555 .
context_time_of_day_period                                             0.8504  
context_active_last_48                                                 0.1152  
context_study_period                                                   0.7637  
context_k10_response_sum_class                                         0.1302  
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

Residual standard error: 0.2767 on 44 degrees of freedom
  (2 observations deleted due to missingness)
Multiple R-squared:  0.2586,    Adjusted R-squared:  0.1406 
F-statistic: 2.192 on 7 and 44 DF,  p-value: 0.05332

For B3:

df |> 
  filter(mooclet_id == 585) |>
  lm(formula = reward ~ as.factor(arm) +
       context_is_weekday + 
       context_is_preferred_time + 
       context_time_of_day_period + 
       context_active_last_48 + 
       context_study_period + 
       context_k10_response_sum_class) |>
  summary()

Call:
lm(formula = reward ~ as.factor(arm) + context_is_weekday + context_is_preferred_time + 
    context_time_of_day_period + context_active_last_48 + context_study_period + 
    context_k10_response_sum_class, data = filter(df, mooclet_id == 
    585))

Residuals:
     Min       1Q   Median       3Q      Max 
-0.47319 -0.20807  0.02868  0.18874  0.60565 

Coefficients:
                                                                          Estimate
(Intercept)                                                               0.225744
as.factor(arm)B3 Modular Interaction Clinical TrialZzreflection_question  0.108790
as.factor(arm)B3 Modular Interaction Clinical TrialZzshort_prompt         0.065037
as.factor(arm)B3 Modular Interaction Clinical TrialZzstories             -0.123998
context_is_weekday                                                       -0.006637
context_is_preferred_time                                                 0.195980
context_time_of_day_period                                                0.002336
context_active_last_48                                                   -0.268577
context_study_period                                                      0.058469
context_k10_response_sum_class                                            0.268362
                                                                         Std. Error
(Intercept)                                                                0.420592
as.factor(arm)B3 Modular Interaction Clinical TrialZzreflection_question   0.104955
as.factor(arm)B3 Modular Interaction Clinical TrialZzshort_prompt          0.119583
as.factor(arm)B3 Modular Interaction Clinical TrialZzstories               0.156449
context_is_weekday                                                         0.103960
context_is_preferred_time                                                  0.092633
context_time_of_day_period                                                 0.128758
context_active_last_48                                                     0.214180
context_study_period                                                       0.273083
context_k10_response_sum_class                                             0.263257
                                                                         t value
(Intercept)                                                                0.537
as.factor(arm)B3 Modular Interaction Clinical TrialZzreflection_question   1.037
as.factor(arm)B3 Modular Interaction Clinical TrialZzshort_prompt          0.544
as.factor(arm)B3 Modular Interaction Clinical TrialZzstories              -0.793
context_is_weekday                                                        -0.064
context_is_preferred_time                                                  2.116
context_time_of_day_period                                                 0.018
context_active_last_48                                                    -1.254
context_study_period                                                       0.214
context_k10_response_sum_class                                             1.019
                                                                         Pr(>|t|)
(Intercept)                                                                0.5943
as.factor(arm)B3 Modular Interaction Clinical TrialZzreflection_question   0.3059
as.factor(arm)B3 Modular Interaction Clinical TrialZzshort_prompt          0.5894
as.factor(arm)B3 Modular Interaction Clinical TrialZzstories               0.4325
context_is_weekday                                                         0.9494
context_is_preferred_time                                                  0.0403
context_time_of_day_period                                                 0.9856
context_active_last_48                                                     0.2168
context_study_period                                                       0.8315
context_k10_response_sum_class                                             0.3139
                                                                          
(Intercept)                                                               
as.factor(arm)B3 Modular Interaction Clinical TrialZzreflection_question  
as.factor(arm)B3 Modular Interaction Clinical TrialZzshort_prompt         
as.factor(arm)B3 Modular Interaction Clinical TrialZzstories              
context_is_weekday                                                        
context_is_preferred_time                                                *
context_time_of_day_period                                                
context_active_last_48                                                    
context_study_period                                                      
context_k10_response_sum_class                                            
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

Residual standard error: 0.2824 on 42 degrees of freedom
Multiple R-squared:  0.2628,    Adjusted R-squared:  0.1048 
F-statistic: 1.664 on 9 and 42 DF,  p-value: 0.1287

For C1:

df |> 
  filter(mooclet_id == 586) |>
  glm(formula = as.factor(reward) ~ as.factor(arm)+
        context_is_weekday + 
        context_is_preferred_time + 
        context_time_of_day_period + 
        context_active_last_48 + 
        context_study_period + 
        context_k10_response_sum_class, family = binomial) |>
  summary()

Call:
glm(formula = as.factor(reward) ~ as.factor(arm) + context_is_weekday + 
    context_is_preferred_time + context_time_of_day_period + 
    context_active_last_48 + context_study_period + context_k10_response_sum_class, 
    family = binomial, data = filter(df, mooclet_id == 586))

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-2.2677  -0.5839  -0.2669  -0.1137   2.5896  

Coefficients:
                                                                    Estimate
(Intercept)                                                           1.8267
as.factor(arm)C1 Long Prompt Rationale Clinical TrialZzis_loss        0.2618
as.factor(arm)C1 Long Prompt Rationale Clinical TrialZzno_rationale   0.6589
context_is_weekday                                                    0.8798
context_is_preferred_time                                             0.6899
context_time_of_day_period                                            0.7504
context_active_last_48                                                1.7211
context_study_period                                                 -2.8444
context_k10_response_sum_class                                       -5.0329
                                                                    Std. Error
(Intercept)                                                             1.5640
as.factor(arm)C1 Long Prompt Rationale Clinical TrialZzis_loss          0.4545
as.factor(arm)C1 Long Prompt Rationale Clinical TrialZzno_rationale     0.6404
context_is_weekday                                                      0.7304
context_is_preferred_time                                               0.5103
context_time_of_day_period                                              0.8004
context_active_last_48                                                  0.8372
context_study_period                                                    0.7004
context_k10_response_sum_class                                          0.9254
                                                                    z value
(Intercept)                                                           1.168
as.factor(arm)C1 Long Prompt Rationale Clinical TrialZzis_loss        0.576
as.factor(arm)C1 Long Prompt Rationale Clinical TrialZzno_rationale   1.029
context_is_weekday                                                    1.205
context_is_preferred_time                                             1.352
context_time_of_day_period                                            0.938
context_active_last_48                                                2.056
context_study_period                                                 -4.061
context_k10_response_sum_class                                       -5.439
                                                                    Pr(>|z|)
(Intercept)                                                           0.2428
as.factor(arm)C1 Long Prompt Rationale Clinical TrialZzis_loss        0.5646
as.factor(arm)C1 Long Prompt Rationale Clinical TrialZzno_rationale   0.3036
context_is_weekday                                                    0.2283
context_is_preferred_time                                             0.1764
context_time_of_day_period                                            0.3485
context_active_last_48                                                0.0398
context_study_period                                                4.88e-05
context_k10_response_sum_class                                      5.37e-08
                                                                       
(Intercept)                                                            
as.factor(arm)C1 Long Prompt Rationale Clinical TrialZzis_loss         
as.factor(arm)C1 Long Prompt Rationale Clinical TrialZzno_rationale    
context_is_weekday                                                     
context_is_preferred_time                                              
context_time_of_day_period                                             
context_active_last_48                                              *  
context_study_period                                                ***
context_k10_response_sum_class                                      ***
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 291.61  on 286  degrees of freedom
Residual deviance: 196.23  on 278  degrees of freedom
  (13 observations deleted due to missingness)
AIC: 214.23

Number of Fisher Scoring iterations: 6

For C2:

df |> 
  filter(mooclet_id == 587) |>
  glm(formula = as.factor(reward) ~ as.factor(arm)+
        context_is_weekday + 
        context_is_preferred_time + 
        context_time_of_day_period + 
        context_active_last_48 + 
        context_study_period + 
        context_k10_response_sum_class, family = binomial) |>
  summary()

Call:
glm(formula = as.factor(reward) ~ as.factor(arm) + context_is_weekday + 
    context_is_preferred_time + context_time_of_day_period + 
    context_active_last_48 + context_study_period + context_k10_response_sum_class, 
    family = binomial, data = filter(df, mooclet_id == 587))

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-1.8473  -0.8158  -0.3925   0.9160   2.5667  

Coefficients:
                                                                      Estimate
(Intercept)                                                           -3.62122
as.factor(arm)C2 Long Prompt Motivation Clinical TrialZzinspiration    0.06774
as.factor(arm)C2 Long Prompt Motivation Clinical TrialZzno_motivation  0.98172
as.factor(arm)C2 Long Prompt Motivation Clinical TrialZzperspective    0.84936
context_is_weekday                                                    -1.00573
context_is_preferred_time                                              0.28865
context_time_of_day_period                                             0.65995
context_active_last_48                                                 2.27761
context_study_period                                                  -2.30010
context_k10_response_sum_class                                         2.41450
                                                                      Std. Error
(Intercept)                                                              1.07554
as.factor(arm)C2 Long Prompt Motivation Clinical TrialZzinspiration      0.52649
as.factor(arm)C2 Long Prompt Motivation Clinical TrialZzno_motivation    0.43688
as.factor(arm)C2 Long Prompt Motivation Clinical TrialZzperspective      0.40859
context_is_weekday                                                       0.47635
context_is_preferred_time                                                0.32927
context_time_of_day_period                                               0.97669
context_active_last_48                                                   0.47413
context_study_period                                                     0.53564
context_k10_response_sum_class                                           0.81208
                                                                      z value
(Intercept)                                                            -3.367
as.factor(arm)C2 Long Prompt Motivation Clinical TrialZzinspiration     0.129
as.factor(arm)C2 Long Prompt Motivation Clinical TrialZzno_motivation   2.247
as.factor(arm)C2 Long Prompt Motivation Clinical TrialZzperspective     2.079
context_is_weekday                                                     -2.111
context_is_preferred_time                                               0.877
context_time_of_day_period                                              0.676
context_active_last_48                                                  4.804
context_study_period                                                   -4.294
context_k10_response_sum_class                                          2.973
                                                                      Pr(>|z|)
(Intercept)                                                            0.00076
as.factor(arm)C2 Long Prompt Motivation Clinical TrialZzinspiration    0.89762
as.factor(arm)C2 Long Prompt Motivation Clinical TrialZzno_motivation  0.02463
as.factor(arm)C2 Long Prompt Motivation Clinical TrialZzperspective    0.03764
context_is_weekday                                                     0.03475
context_is_preferred_time                                              0.38069
context_time_of_day_period                                             0.49923
context_active_last_48                                                1.56e-06
context_study_period                                                  1.75e-05
context_k10_response_sum_class                                         0.00295
                                                                         
(Intercept)                                                           ***
as.factor(arm)C2 Long Prompt Motivation Clinical TrialZzinspiration      
as.factor(arm)C2 Long Prompt Motivation Clinical TrialZzno_motivation *  
as.factor(arm)C2 Long Prompt Motivation Clinical TrialZzperspective   *  
context_is_weekday                                                    *  
context_is_preferred_time                                                
context_time_of_day_period                                               
context_active_last_48                                                ***
context_study_period                                                  ***
context_k10_response_sum_class                                        ** 
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 390.89  on 299  degrees of freedom
Residual deviance: 304.80  on 290  degrees of freedom
  (14 observations deleted due to missingness)
AIC: 324.8

Number of Fisher Scoring iterations: 5

For C3:

df |> 
  filter(mooclet_id == 588) |>
  glm(formula = as.factor(reward) ~ as.factor(arm)+
        context_is_weekday + 
        context_is_preferred_time + 
        context_time_of_day_period + 
        context_active_last_48 + 
        context_study_period + 
        context_k10_response_sum_class, family = binomial) |>
  summary()

Call:
glm(formula = as.factor(reward) ~ as.factor(arm) + context_is_weekday + 
    context_is_preferred_time + context_time_of_day_period + 
    context_active_last_48 + context_study_period + context_k10_response_sum_class, 
    family = binomial, data = filter(df, mooclet_id == 588))

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-1.7196  -0.7457  -0.2652   0.8876   2.5127  

Coefficients:
                                                                  Estimate
(Intercept)                                                        -3.5071
as.factor(arm)C3 Long Prompt Reminder Clinical TrialZzno_reminder  -0.2138
context_is_weekday                                                 -0.7922
context_is_preferred_time                                           0.2780
context_time_of_day_period                                          0.2165
context_active_last_48                                              2.8292
context_study_period                                               -2.1691
context_k10_response_sum_class                                      2.3428
                                                                  Std. Error
(Intercept)                                                           1.0705
as.factor(arm)C3 Long Prompt Reminder Clinical TrialZzno_reminder     0.3527
context_is_weekday                                                    0.5407
context_is_preferred_time                                             0.3213
context_time_of_day_period                                            1.1616
context_active_last_48                                                0.4641
context_study_period                                                  0.5233
context_k10_response_sum_class                                        0.8207
                                                                  z value
(Intercept)                                                        -3.276
as.factor(arm)C3 Long Prompt Reminder Clinical TrialZzno_reminder  -0.606
context_is_weekday                                                 -1.465
context_is_preferred_time                                           0.865
context_time_of_day_period                                          0.186
context_active_last_48                                              6.096
context_study_period                                               -4.145
context_k10_response_sum_class                                      2.855
                                                                  Pr(>|z|)    
(Intercept)                                                        0.00105 ** 
as.factor(arm)C3 Long Prompt Reminder Clinical TrialZzno_reminder  0.54447    
context_is_weekday                                                 0.14287    
context_is_preferred_time                                          0.38685    
context_time_of_day_period                                         0.85212    
context_active_last_48                                            1.09e-09 ***
context_study_period                                              3.40e-05 ***
context_k10_response_sum_class                                     0.00431 ** 
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 431.83  on 348  degrees of freedom
Residual deviance: 320.50  on 341  degrees of freedom
  (12 observations deleted due to missingness)
AIC: 336.5

Number of Fisher Scoring iterations: 5

For C4:

df |> 
  filter(mooclet_id == 590) |>
  glm(formula = as.factor(reward) ~ as.factor(arm)+
        context_is_weekday + 
        context_is_preferred_time + 
        context_time_of_day_period + 
        context_active_last_48 + 
        context_study_period + 
        context_k10_response_sum_class, family = binomial) |>
  summary()

Call:
glm(formula = as.factor(reward) ~ as.factor(arm) + context_is_weekday + 
    context_is_preferred_time + context_time_of_day_period + 
    context_active_last_48 + context_study_period + context_k10_response_sum_class, 
    family = binomial, data = filter(df, mooclet_id == 590))

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-1.8794  -0.8477  -0.3031   0.8981   2.6689  

Coefficients:
                                                                                 Estimate
(Intercept)                                                                       -2.0653
as.factor(arm)C4 Long Prompt Reflection Commitment Clinical TrialZzno_commitment   0.6174
context_is_weekday                                                                -0.1727
context_is_preferred_time                                                         -2.1747
context_time_of_day_period                                                         0.3884
context_active_last_48                                                             2.5783
context_study_period                                                              -2.6369
context_k10_response_sum_class                                                     0.9387
                                                                                 Std. Error
(Intercept)                                                                          1.1079
as.factor(arm)C4 Long Prompt Reflection Commitment Clinical TrialZzno_commitment     0.2954
context_is_weekday                                                                   0.4656
context_is_preferred_time                                                            0.5657
context_time_of_day_period                                                           0.4653
context_active_last_48                                                               0.5606
context_study_period                                                                 0.5678
context_k10_response_sum_class                                                       0.8479
                                                                                 z value
(Intercept)                                                                       -1.864
as.factor(arm)C4 Long Prompt Reflection Commitment Clinical TrialZzno_commitment   2.090
context_is_weekday                                                                -0.371
context_is_preferred_time                                                         -3.845
context_time_of_day_period                                                         0.835
context_active_last_48                                                             4.599
context_study_period                                                              -4.644
context_k10_response_sum_class                                                     1.107
                                                                                 Pr(>|z|)
(Intercept)                                                                      0.062303
as.factor(arm)C4 Long Prompt Reflection Commitment Clinical TrialZzno_commitment 0.036584
context_is_weekday                                                               0.710657
context_is_preferred_time                                                        0.000121
context_time_of_day_period                                                       0.403879
context_active_last_48                                                           4.24e-06
context_study_period                                                             3.41e-06
context_k10_response_sum_class                                                   0.268281
                                                                                    
(Intercept)                                                                      .  
as.factor(arm)C4 Long Prompt Reflection Commitment Clinical TrialZzno_commitment *  
context_is_weekday                                                                  
context_is_preferred_time                                                        ***
context_time_of_day_period                                                          
context_active_last_48                                                           ***
context_study_period                                                             ***
context_k10_response_sum_class                                                      
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 390.00  on 298  degrees of freedom
Residual deviance: 288.59  on 291  degrees of freedom
  (13 observations deleted due to missingness)
AIC: 304.59

Number of Fisher Scoring iterations: 5