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Table 3 SJT score differences for gender, socio-economic status (high school origin and parental background) and ethnicity

From: Evaluation of Situational Judgment Tests in student selection in Indonesia and the impact on diversity issues

Variable

n

Year 2017

n

Year 2018

Mean score

SD

Mean score comparison

Mean score

SD

Mean score comparison

Gender

 Male

142

411.89

27.14

Independent t-test, t(444) = 4.561, p = 0.000*, d = 0.455

161

414.46

24.77

Independent t-test, t(506) = 4.78, p = 0.000*, d = 0.462

 Female

304

423.62

24.40

 

347

426.31

26.54

 

High school origin

 Java Bali

389

420.68

25.46

ANOVA test, F(3,442) = 1.582, p = 0.193, η2 = 0.011

452

422.48

26.90

ANOVA test, F(3,504) = 0.318, p = 0.812, η2 = 0.002

 Sumatera

34

411.44

30.67

 

30

425.83

25.98

 

 Kalimantan–Sulawesi

13

414.92

24.29

 

12

423.00

23.67

 

 Overseas

10

424.00

22.85

 

14

417.57

18.53

 

Father educational background

 Elementary school – high school

28

413.96

35.01

ANOVA test, F(2,443) = 0.789, p = 0.455, η2 = 0.004

33

416.21

21.71

ANOVA test, F(2,505) = 1.534, p = 0.217, η2 = 0.006

 Vocational - Bachelor

206

420.43

24.86

 

230

421.70

26.50

 

 Masters - Doctoral

212

420.14

25.46

 

245

424.20

27.10

 

Mother educational background

 Elementary school – high school

47

415.04

27.44

ANOVA test, F(2,443) = 1, p = 0.369, η2 = 0.005

54

415.20

25.16

ANOVA test, F(2,505) = 2.333, p = 0.098, η2 = 0.009

 Vocational - Bachelor

265

420.09

26.22

 

296

423.33

27.26

 

 Masters - Doctoral

134

421.18

24.53

 

158

423.61

25.39

 

Ethnicity

 Indonesian

169

423.17

24.55

ANOVA test, F(5,440) = 2.147, p = 0.059, η2 = 0.024

197

423.79

24.56

ANOVA test, F(5,502) = 1.321, p = 0.254, η2 = 0.013

 Javanese

130

417.80

23.38

 

136

423.15

27.26

 

 Sumatran

52

411.58

28.35

 

59

416.97

29.89

 

 Chinese

35

423.43

30.70

 

39

425.72

26.00

 

 Other

33

417.27

28.01

 

42

416.50

29.96

 

 Mixed ethnicity

27

423.93

28.13

 

35

426.40

24.09

 
  1. Levene’s tests indicated equal variances (p value ranging from 0.60 to 0.899) which rendered the ANOVA results meaningful although there were large sample size differences among groups
  2. *Denotes significant differences/correlations among variables (p < .05)