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Table 5 DIF statistics for the reading comprehension test in terms of learners’ mode of learning

From: Reading comprehension test fairness across gender and mode of learning: insights from IRT-based differential item functioning analysis

Item

Code1

Code2

Difficulty contrast (S. E.)

Weltch t

Weltch Prob

Difficulty (S.E.)

Difficulty (S. E.)

1

.47(.06)

.47(.06)

.00(.08)

.00

1.00

2

.56(.06)

.65(.06)

−.09(.09)

−1.07

.28

3

.25(.06)

.22(.06)

.02(.08)

.25

.80

4

−.26(.06)

−.31(.07)

.05(.09)

.58

.56

5

−.05(.06)

−.11(.06)

.06(.09)

.71

.47

6

.039(.06)

.23(.06)

−.20(.08)

−2.32

.02

7

−.01(.06)

−.06(.06)

.05(.09)

.55

.58

8

.08(.06)

.08(.06)

.00(.08)

.00

1.00

9

−.58(.06)

−.51(.07)

−.07(.09)

−.77

.44

10

.56(.06)

.68(.06)

−.12(.09)

−1.41

.16

11

.88(.06)

.88(.07)

.00(.09)

.00

1.00

12

.08(.06)

.08(.06)

.00(.08)

.00

1.00

13

.23(.06)

.23(.06)

.00(.08)

.00

1.00

14

.01(.06)

−.11(.06)

.12(.09)

1.39

.16

15

−.40(.06)

−.53(.07)

.13(.09)

1.42

.15

16

.44(.06)

.44(.06)

.00(.08)

.00

1.00

17

−.41(.06)

−.50(.07)

.09(.09)

.94

.34

18

−.20(.06)

−.20(.07)

.00(.09)

.00

1.00

19

−.27(.06)

−.27(.07)

.00(.09)

.00

1.00

20

.44(.06)

.44(.06)

.00(.08)

.00

1.00

21

−.13(.06)

−.22(.07)

.09(.09)

1.01

.31

22

−.60(.06)

−.60(.07)

.00(.10)

.00

1.00

23

−.17(.06)

−.17(.07)

.00(.09)

.00

1.00

24

−.69(.06)

−.69(.07)

.00(.10)

.00

1.00

25

−.35(.06)

−.35(.07)

.00(.09)

.00

1.00

26

.18(.06)

.18(.06)

.00(.08)

.00

1.00

27

.23(.06)

.19(.06)

.05(.08)

.55

.58

28

−.22(.06)

−.08(.06)

.14(.09)

−1.60

.11

29

−.06(.06)

−.06(.06)

.00(.09)

.00

1.00

30

−.02(.06)

−.02(.06)

.00(.09)

.00

1.00