All the Factorial Mixed ANOVA

Summary for the Mixed ANOVAs that I tested for:

Tiktok (Hi vs Lo) - Trial (Neg vs Neu) on Reaction Time - NOT SIGNIFICANT
Tiktok (Hi vs Lo) - Trial (Neg vs Neu) on Accuracy - NO MAIN EFFECT BUT THERE IS INTERACTION at alpha = 0.01.
Tiktok (Hi vs Lo) - Anxiety (Hi vs Lo) - Trial (Neg vs Neu) on Reaction Time - NOT SIGNIFICANT
Tiktok (Hi vs Lo) - Depression (Hi vs Lo) - Trial (Neg vs Neu) on Reaction Time - NOT SIGNIFICANT
Tiktok (Hi vs Lo) - Stress (Hi vs Lo) - Trial (Neg vs Neu) on Reaction Time - NOT SIGNIFICANT
Tiktok (Hi vs Lo) - ADHD (Hi vs Lo) - Trial (Neg vs Neu) on Reaction Time - NOT SIGNIFICANT
Tiktok (Hi vs Lo) - Anxiety (Hi vs Lo) - Trial (Neg vs Neu) on Accuracy
Tiktok (Hi vs Lo) - Depression (Hi vs Lo) - Trial (Neg vs Neu) on Accuracy
Tiktok (Hi vs Lo) - Stress (Hi vs Lo) - Trial (Neg vs Neu) on Accuracy
Tiktok (Hi vs Lo) - ADHD (Hi vs Lo) - Trial (Neg vs Neu) on Accuracy -INTERACTION between Tiktok Usage x ADHD level x Type of Trial on Accuracy at alpha = 0.05

Mixed ANOVA: Tiktok (Hi vs Lo) - Trial (Neg vs Neu) on Reaction Time – NOT SIGNIFICANT

## ANOVA Table (type II tests)
## 
##               Effect DFn DFd     F     p p<.05      ges
## 1       tiktok_group   1  24 1.727 0.201       6.20e-02
## 2              Trial   1  24 0.018 0.894       6.12e-05
## 3 tiktok_group:Trial   1  24 0.022 0.884       7.30e-05

Mixed ANOVA: Tiktok (Hi vs Lo) - Trial (Neg vs Neu) on Accuracy - NO MAIN EFFECT, BUT THERE IS INTERACTION at alpha = 0.01.

## Anova Table (Type 3 tests)
## 
## Response: Congruency.Effect
##               Effect    df    MSE       F  ges p.value
## 1       tiktok_group 1, 24 306.15    2.90 .102    .101
## 2              Trial 1, 24  19.42    0.72 .002    .404
## 3 tiktok_group:Trial 1, 24  19.42 8.94 ** .022    .006
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '+' 0.1 ' ' 1

A mixed factorial ANOVA indicated that there is NO main effect of Tiktok usage and type of trial on Accuracy. However, there is a statistically significant two-way interactions between Tiktok usage and type of trial on Accuracy, F(1,24) = 8.937, p = 0.006m eta-squared = 0.022.

Descriptive Statistics

## # A tibble: 4 × 6
##   tiktok_group Trial  variable              n  mean    sd
##   <chr>        <chr>  <fct>             <dbl> <dbl> <dbl>
## 1 High         NegACC Congruency.Effect    13 21.2  18.1 
## 2 High         NeuACC Congruency.Effect    13 18.6  15.5 
## 3 Low          NegACC Congruency.Effect    13  9.26  4.89
## 4 Low          NeuACC Congruency.Effect    13 14.0   7.83

Visualization

Calculate effect

## # A tibble: 2 × 9
##   Trial  Effect         DFn   DFd     F     p `p<.05`   ges p.adj
##   <chr>  <chr>        <dbl> <dbl> <dbl> <dbl> <chr>   <dbl> <dbl>
## 1 NegACC tiktok_group     1    24 5.27  0.031 "*"     0.18  0.062
## 2 NeuACC tiktok_group     1    24 0.919 0.347 ""      0.037 0.694

There was a statistically significant effect of Tiktok usage in NEGATIVE emotion trial on Accuracy, F(1,24) = 5.269, p = 0.031, eta-squared = 0.0180

## # A tibble: 2 × 8
##   tiktok_group Effect   DFn   DFd     F     p `p<.05`   ges
## * <chr>        <chr>  <dbl> <dbl> <dbl> <dbl> <chr>   <dbl>
## 1 High         Trial      1    12  2.35 0.151 ""      0.007
## 2 Low          Trial      1    12  7.19 0.02  "*"     0.123

There was a statistically significant effect of type of trial on Accuracy at Low Tiktok usage, F(1,12) = 7.191, p = 0.02, eta-squared = 0.1123

Pairwise comparison

## # A tibble: 2 × 10
##   Trial  .y.       group1 group2    n1    n2      p p.signif  p.adj p.adj.signif
## * <chr>  <chr>     <chr>  <chr>  <int> <int>  <dbl> <chr>     <dbl> <chr>       
## 1 NegACC Congruen… High   Low       13    13 0.0307 *        0.0307 *           
## 2 NeuACC Congruen… High   Low       13    13 0.347  ns       0.347  ns

Pairwise comparison shows that the mean accuracy score was significantly different in High and Low Tiktok usage comparison at Negative Emotion Trial, p = 0.0307.

Mixed ANOVA: Tiktok (Hi vs Lo) - Anxiety (Hi vs Lo) - Trial (Neg vs Neu) on Reaction Time – NOT SIGNIFICANT

## Anova Table (Type 3 tests)
## 
## Response: Reaction.Time
##                             Effect    df      MSE    F   ges p.value
## 1                     tiktok_group 1, 22 13538.85 1.59  .062    .220
## 2                    anxiety_group 1, 22 13538.85 0.01 <.001    .935
## 3       tiktok_group:anxiety_group 1, 22 13538.85 2.07  .079    .165
## 4                            Trial 1, 22  1266.90 0.00 <.001    .993
## 5               tiktok_group:Trial 1, 22  1266.90 0.00 <.001    .975
## 6              anxiety_group:Trial 1, 22  1266.90 0.22 <.001    .647
## 7 tiktok_group:anxiety_group:Trial 1, 22  1266.90 0.35  .001    .560
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '+' 0.1 ' ' 1

Mixed ANOVA: Tiktok (Hi vs Lo) - Depression (Hi vs Lo) - Trial (Neg vs Neu) on Reaction Time – NO SIGNIFICANT

## Anova Table (Type 3 tests)
## 
## Response: Reaction.Time
##                                Effect    df      MSE    F   ges p.value
## 1                        tiktok_group 1, 22 14768.66 1.57  .062    .224
## 2                    depression_group 1, 22 14768.66 0.00 <.001    .959
## 3       tiktok_group:depression_group 1, 22 14768.66 0.07  .003    .799
## 4                               Trial 1, 22  1264.42 0.02 <.001    .894
## 5                  tiktok_group:Trial 1, 22  1264.42 0.01 <.001    .935
## 6              depression_group:Trial 1, 22  1264.42 0.61  .002    .444
## 7 tiktok_group:depression_group:Trial 1, 22  1264.42 0.00 <.001    .963
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '+' 0.1 ' ' 1

Tiktok (Hi vs Lo) - Stress (Hi vs Lo) - Trial (Neg vs Neu) on Reaction Time – NOT SIGNIFICANT

## Anova Table (Type 3 tests)
## 
## Response: Reaction.Time
##                            Effect    df      MSE    F   ges p.value
## 1                    tiktok_group 1, 22 14103.82 1.18  .047    .290
## 2                    stress_group 1, 22 14103.82 0.54  .022    .470
## 3       tiktok_group:stress_group 1, 22 14103.82 0.57  .023    .459
## 4                           Trial 1, 22  1298.53 0.02 <.001    .901
## 5              tiktok_group:Trial 1, 22  1298.53 0.03 <.001    .870
## 6              stress_group:Trial 1, 22  1298.53 0.02 <.001    .902
## 7 tiktok_group:stress_group:Trial 1, 22  1298.53 0.00 <.001    .999
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '+' 0.1 ' ' 1

Mixed ANOVA: Tiktok (Hi vs Lo) - ADHD (Hi vs Lo) - Trial (Neg vs Neu) on Reaction Time - NOT SIGNIFICANT

## Anova Table (Type 3 tests)
## 
## Response: Reaction.Time
##                          Effect    df      MSE    F   ges p.value
## 1                  tiktok_group 1, 22 14474.49 1.16  .046    .293
## 2                    ADHD_group 1, 22 14474.49 0.48  .020    .494
## 3       tiktok_group:ADHD_group 1, 22 14474.49 0.03  .001    .856
## 4                         Trial 1, 22  1252.93 0.00 <.001    .955
## 5            tiktok_group:Trial 1, 22  1252.93 0.06 <.001    .816
## 6              ADHD_group:Trial 1, 22  1252.93 0.17 <.001    .683
## 7 tiktok_group:ADHD_group:Trial 1, 22  1252.93 0.65  .002    .430
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '+' 0.1 ' ' 1

Mixed ANOVA: Tiktok (Hi vs Lo) - Anxiety (Hi vs Lo) - Trial (Neg vs Neu) on Accuracy - RECONFIRM INTERACTION above

## Anova Table (Type 3 tests)
## 
## Response: Accuracy
##                             Effect    df    MSE       F   ges p.value
## 1                     tiktok_group 1, 22 324.53    2.55  .098    .124
## 2                    anxiety_group 1, 22 324.53    0.00 <.001    .961
## 3       tiktok_group:anxiety_group 1, 22 324.53    0.64  .027    .433
## 4                            Trial 1, 22  20.54    0.49  .001    .492
## 5               tiktok_group:Trial 1, 22  20.54 8.92 **  .024    .007
## 6              anxiety_group:Trial 1, 22  20.54    0.48  .001    .497
## 7 tiktok_group:anxiety_group:Trial 1, 22  20.54    0.21 <.001    .654
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '+' 0.1 ' ' 1

Mixed ANOVA: Tiktok (Hi vs Lo) - Depression (Hi vs Lo) - Trial (Neg vs Neu) on Accuracy - RECONFIRM INTERACTION ABOVE

## Anova Table (Type 3 tests)
## 
## Response: Accuracy
##                                Effect    df    MSE       F   ges p.value
## 1                        tiktok_group 1, 22 333.23    2.61  .101    .120
## 2                    depression_group 1, 22 333.23    0.02  .001    .879
## 3       tiktok_group:depression_group 1, 22 333.23    0.03  .001    .874
## 4                               Trial 1, 22  18.64    0.53  .001    .473
## 5                  tiktok_group:Trial 1, 22  18.64 9.21 **  .022    .006
## 6              depression_group:Trial 1, 22  18.64    0.01 <.001    .931
## 7 tiktok_group:depression_group:Trial 1, 22  18.64  2.99 +  .007    .098
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '+' 0.1 ' ' 1

Mixed ANOVA: Tiktok (Hi vs Lo) - Stress (Hi vs Lo) - Trial (Neg vs Neu) on Accuracy - RECONFIRM INTERACTION ABOVE

## Anova Table (Type 3 tests)
## 
## Response: Accuracy
##                            Effect    df    MSE       F   ges p.value
## 1                    tiktok_group 1, 22 310.98  2.98 +  .113    .098
## 2                    stress_group 1, 22 310.98    0.13  .005    .724
## 3       tiktok_group:stress_group 1, 22 310.98    1.50  .060    .234
## 4                           Trial 1, 22  19.93    0.30 <.001    .592
## 5              tiktok_group:Trial 1, 22  19.93 8.23 **  .022    .009
## 6              stress_group:Trial 1, 22  19.93    0.00 <.001    .989
## 7 tiktok_group:stress_group:Trial 1, 22  19.93    1.38  .004    .252
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '+' 0.1 ' ' 1

Mixed ANOVA: Tiktok (Hi vs Lo) - ADHD (Hi vs Lo) - Trial (Neg vs Neu) on Accuracy

NO MAIN EFFECT

There is INTERACTION between Tiktok Usage x ADHD level x Type of Trial on Accuracy at alpha = 0.05

RECONFIRM INTERACTION between Tiktok Usage x Type of Trial

## Anova Table (Type 3 tests)
## 
## Response: Accuracy
##                          Effect    df    MSE       F   ges p.value
## 1                  tiktok_group 1, 22 294.46    2.05  .081    .166
## 2                    ADHD_group 1, 22 294.46    1.24  .051    .278
## 3       tiktok_group:ADHD_group 1, 22 294.46    1.71  .069    .204
## 4                         Trial 1, 22  16.13    0.10 <.001    .751
## 5            tiktok_group:Trial 1, 22  16.13 9.20 **  .021    .006
## 6              ADHD_group:Trial 1, 22  16.13    0.47  .001    .500
## 7 tiktok_group:ADHD_group:Trial 1, 22  16.13  6.41 *  .015    .019
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '+' 0.1 ' ' 1

A mixed factorial ANOVA indicated that there is NO main effect of Tiktok usage, ADHD level and type of trial on Accuracy. However, there is:
* a statistically significant three-way interactions between Tiktok usage, ADHD and type of trial on Accuracy, F(1,22) = 6.41, p = 0.019. eta-squared = 0.015.
* a statistically significant two-way interactions between Tiktok usage and type of trial on Accuracy, F(1,22) = 9.20, p = 0.006. eta-squared = 0.021.

Descriptive Statistics

## # A tibble: 8 × 7
##   tiktok_group ADHD_group Trial  variable     n  mean    sd
##   <chr>        <chr>      <chr>  <fct>    <dbl> <dbl> <dbl>
## 1 High         high       NegACC Accuracy     8 24.9  20.8 
## 2 High         high       NeuACC Accuracy     8 23.9  17.0 
## 3 High         low        NegACC Accuracy     5 15.2  12.3 
## 4 High         low        NeuACC Accuracy     5  9.97  7.96
## 5 Low          high       NegACC Accuracy     5 10.9   6.34
## 6 Low          high       NeuACC Accuracy     5 11.1   7.48
## 7 Low          low        NegACC Accuracy     8  8.21  3.84
## 8 Low          low        NeuACC Accuracy     8 15.7   7.98

Visualization

Calculate interaction

## # A tibble: 6 × 8
##   tiktok_group Effect             DFn   DFd     F     p `p<.05`   ges
## * <chr>        <chr>            <dbl> <dbl> <dbl> <dbl> <chr>   <dbl>
## 1 High         ADHD_group           1    11  1.67 0.223 ""      0.128
## 2 High         Trial                1    11  3.26 0.098 ""      0.01 
## 3 High         ADHD_group:Trial     1    11  1.51 0.244 ""      0.005
## 4 Low          ADHD_group           1    11  0.08 0.783 ""      0.006
## 5 Low          Trial                1    11  6.44 0.028 "*"     0.089
## 6 Low          ADHD_group:Trial     1    11  5.93 0.033 "*"     0.082

There was a statistically significant simple two-way interaction of ADHD level and Type of Trial at LOW Tiktok Usage, F(1, 11) = 5.93, p = 0.033.

## # A tibble: 6 × 8
##   ADHD_group Effect               DFn   DFd      F     p `p<.05`      ges
## * <chr>      <chr>              <dbl> <dbl>  <dbl> <dbl> <chr>      <dbl>
## 1 high       tiktok_group           1    11  2.32  0.156 ""      0.169   
## 2 high       Trial                  1    11  0.068 0.799 ""      0.000198
## 3 high       tiktok_group:Trial     1    11  0.129 0.727 ""      0.000372
## 4 low        tiktok_group           1    11  0.02  0.889 ""      0.002   
## 5 low        Trial                  1    11  0.495 0.496 ""      0.006   
## 6 low        tiktok_group:Trial     1    11 15.1   0.003 "*"     0.151

There was a statistically significant simple two-way interaction of tiktok usage and Type of Trial at LOW ADHD, F(1, 11) = 15.088, p = 0.003.

## # A tibble: 6 × 8
##   Trial  Effect                    DFn   DFd     F     p `p<.05`   ges
## * <chr>  <chr>                   <dbl> <dbl> <dbl> <dbl> <chr>   <dbl>
## 1 NegACC tiktok_group                1    22 3.82  0.063 ""      0.148
## 2 NegACC ADHD_group                  1    22 1.35  0.258 ""      0.058
## 3 NegACC tiktok_group:ADHD_group     1    22 0.427 0.52  ""      0.019
## 4 NeuACC tiktok_group                1    22 0.575 0.456 ""      0.025
## 5 NeuACC ADHD_group                  1    22 0.999 0.328 ""      0.043
## 6 NeuACC tiktok_group:ADHD_group     1    22 3.98  0.059 ""      0.153

There was NO statistically significant interaction of ADHD level and Tiktok usage in different trial

All the Factorial Mixed ANOVA

2022-11-29

Summary for the Mixed ANOVAs that I tested for:

Mixed ANOVA: Tiktok (Hi vs Lo) - Trial (Neg vs Neu) on Reaction Time – NOT SIGNIFICANT

Mixed ANOVA: Tiktok (Hi vs Lo) - Trial (Neg vs Neu) on Accuracy - NO MAIN EFFECT, BUT THERE IS INTERACTION at alpha = 0.01.

Descriptive Statistics

Visualization

Calculate effect

Pairwise comparison

Mixed ANOVA: Tiktok (Hi vs Lo) - Anxiety (Hi vs Lo) - Trial (Neg vs Neu) on Reaction Time – NOT SIGNIFICANT

Mixed ANOVA: Tiktok (Hi vs Lo) - Depression (Hi vs Lo) - Trial (Neg vs Neu) on Reaction Time – NO SIGNIFICANT

Tiktok (Hi vs Lo) - Stress (Hi vs Lo) - Trial (Neg vs Neu) on Reaction Time – NOT SIGNIFICANT

Mixed ANOVA: Tiktok (Hi vs Lo) - ADHD (Hi vs Lo) - Trial (Neg vs Neu) on Reaction Time - NOT SIGNIFICANT

Mixed ANOVA: Tiktok (Hi vs Lo) - Anxiety (Hi vs Lo) - Trial (Neg vs Neu) on Accuracy - RECONFIRM INTERACTION above

Mixed ANOVA: Tiktok (Hi vs Lo) - Depression (Hi vs Lo) - Trial (Neg vs Neu) on Accuracy - RECONFIRM INTERACTION ABOVE

Mixed ANOVA: Tiktok (Hi vs Lo) - Stress (Hi vs Lo) - Trial (Neg vs Neu) on Accuracy - RECONFIRM INTERACTION ABOVE

Mixed ANOVA: Tiktok (Hi vs Lo) - ADHD (Hi vs Lo) - Trial (Neg vs Neu) on Accuracy

NO MAIN EFFECT

There is INTERACTION between Tiktok Usage x ADHD level x Type of Trial on Accuracy at alpha = 0.05

RECONFIRM INTERACTION between Tiktok Usage x Type of Trial

Descriptive Statistics

Visualization

Calculate interaction