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Table 6 Results of moderator analyses for meta-analysis 1 (game-based STEM learning vs. alternative activities in STEM learning)

From: Effectiveness of digital educational game and game design in STEM learning: a meta-analytic review

Moderator variables

No. St

No. ES

Mean g

SE

t

p

95% CI lower

95% CI upper

Omnibus test

F (df1, df2)

p

Level 2 variance

Level 3 variance

Game type

82

126

      

F (6, 119) = 2.229

0.045

0.235

0.346

 Role playing

18

29

0.586

0.178

3.29

0.001

0.233

0.939

    

 Strategy

5

6

1.841

0.355

5.193

< 0.001

1.139

2.543

    

 Action

6

10

0.394

0.31

1.274

0.205

− 0.219

1.007

    

 Construction

1

2

0.703

0.709

0.992

0.323

− 0.7

2.106

    

 Adventure

5

13

0.701

0.317

2.212

0.029

0.074

1.329

    

 Simulation

15

21

0.464

0.201

2.309

0.023

0.066

0.862

    

 Puzzle

32

45

0.551

0.136

4.04

< 0.001

0.281

0.821

    

Game time

65

106

      

F (2, 103) = 0.888

0.415

0.295

0.312

 Up to 1 day

21

33

0.792

0.165

4.784

< 0.001

0.463

1.12

    

 Between 1 and 7 days

11

20

0.444

0.233

1.905

0.06

− 0.018

0.905

    

 Over 7 days

33

53

0.573

0.132

4.332

< 0.001

0.311

0.835

    

Level of realism

74

117

      

F (2, 113) = 0.580

0.562

0.247

0.466

 Cartoon-like

39

60

0.545

0.135

4.045

< 0.001

0.278

0.813

    

 Photorealistic

25

36

0.78

0.172

4.545

< 0.001

0.44

1.119

    

 Schematic

10

21

0.66

0.262

2.524

0.013

0.142

1.179

    

Educational level

86

136

      

F (3, 132) = 1.379

0.252

0.256

0.354

 Elementary school

35

54

0.543

0.132

4.118

< 0.001

0.282

0.804

    

 Middle school

13

22

0.461

0.212

2.175

0.031

0.042

0.88

    

 High school

14

28

0.534

0.199

2.685

0.008

0.141

0.927

    

 College/University

24

32

0.907

0.164

5.516

< 0.001

0.582

1.232

    

Subject

86

136

      

F (3, 132) = 5.700

0.001

0.253

0.278

 Science

40

61

0.674

0.114

5.895

< 0.001

0.448

0.9

    

 Math

21

34

0.179

0.156

1.145

0.254

− 0.13

0.487

    

 Engineering

5

8

0.271

0.316

0.858

0.392

− 0.354

0.896

    

 Computer

20

33

1.077

0.165

6.526

< 0.001

0.75

1.403

    

Learning outcome

86

136

      

F (2, 133) = 4.273

0.016

0.276

0.284

 Knowledge

65

90

0.538

0.092

5.839

< 0.001

0.356

0.721

    

 Cognitive skills

26

40

0.91

0.137

6.641

< 0.001

0.639

1.181

    

 Mixed

3

6

− 0.015

0.394

− 0.039

0.969

− 0.795

0.764

    
  1. No. St: number of studies; no. ES: number of effect sizes; g: mean effect size (g); SE: standard error; CI: confidence interval; F (df1, df2): omnibus test of regression coefficient in the model; p: p-value of the omnibus test; level 2 variance: variance between effect sizes extracted from the same study (heterogeneity of within-study); level 3 variance: variance between studies (heterogeneity of between-study)