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Table 1 Item parameters using the graded response model

From: Development of the Japanese version of the Other As Shamer Scale using item response theory

Item

Item parameters

A

B1

B2

B3

B4

Item1

1.60

− 1.68

− 0.49

0.53

1.54

Item2

1.51

− 1.38

− 0.17

0.98

1.68

Item3

0.96

− 1.12

0.67

2.02

3.00

Item4

0.70

− 2.64

− 1.67

− 0.65

0.71

Item5

1.95

− 1.24

− 0.01

0.94

1.56

Item6

2.07

− 0.85

0.30

1.02

1.64

Item7

1.41

− 1.38

− 0.13

0.98

1.66

Item8

1.49

− 1.26

− 0.12

0.76

1.39

Item9

1.00

− 0.52

0.93

2.05

2.46

Item10

0.94

− 0.80

0.40

1.19

2.08

Item11

0.73

− 3.25

− 1.61

− 0.05

1.60

Item12

1.44

− 0.65

0.52

1.33

2.12

Item13

1.23

− 0.60

0.47

1.26

2.12

Item14

1.21

− 1.04

0.13

0.98

1.80

Item15

1.58

− 0.81

0.15

0.86

1.58

Item16

1.09

− 0.57

0.73

1.60

2.31

Item17

1.13

− 1.17

− 0.21

0.73

1.72

Item18

1.33

− 0.55

0.37

0.98

1.71