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Table 4 Rasch model parameters

From: Sexuality and contraceptive knowledge in university students: instrument development and psychometric analysis using item response theory

Item

Difficulty index

Standard error

Infit

Outfit

4

−2.77

0.18

1.14

1.29

8

−3.22

0.21

0.98

1.15

13

−1.44

0.13

1.12

1.38

15

−0.11

0.12

1.2

1.14

16

1.29

0.13

1.18

1.14

19

−0.18

0.12

1.03

1

26

−0.68

0.12

1.07

1.15

27

0.71

0.12

0.95

1.04

28

−0.69

0.12

0.83

0.75

29

1.70

0.14

1

1.01

30

1.41

0.13

0.84

0.66

31

0.57

0.12

0.92

0.83

32

0.34

0.12

0.87

0.89

33

2.23

0.16

0.89

0.68

34

0.83

0.12

0.98

0.88

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Reproductive Health

ISSN: 1742-4755