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Language Testing in Asia

Table 4 Rasch Item and person reliability and separation indexes for seven universities (N = 4407)

From: Validity argument for the VELC Test® score interpretations and uses

University

n 

M

SD

Item Reliability

Item Separation

Person Reliability

Person Separation

A

297

85.42

12.26

.98

6.42

.88

2.69

B

211

46.38

13.07

.96

5.24

.87

2.64

C

228

52.94

14.35

.98

6.91

.89

2.78

D

1011

77.93

15.62

1.00

14.48

.91

3.25

E

272

66.70

11.42

.98

7.77

.87

2.55

F

1235

73.34

13.40

1.00

16.86

.88

2.76

G

1153

80.18

15.25

1.00

15.07

.92

3.36

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