Table 3 Summary of parameter estimates and item fit statistics of the Rating Scale Model: ABCD—risk scale.

From: Validation of the Dutch-Flemish translated ABCD questionnaire to measure cardiovascular diseases knowledge and risk perception among adults

Item

Mean

Severity (SE)

Outfit

Infit

τi.Cat1

τi .Cat2

τi .Cat3

Risk perception

1

1.20

1.12 (0.09)

1.04

1.06

− 2.65

1.14

4.88

2

1.13

1.42 (0.09)

0.86

1.88

− 2.36

1.44

5.18

3

1.22

1.06 (0.09)

1.14

1.16

− 2.72

1.07

4.82

4

0.97

2.05 (0.09)

0.79

0.79

− 1.72

2.07

5.81

5

0.95

2.15 (0.09)

0.89

0.90

− 1.63

2.16

5.91

6

1.13

1.42 (0.09)

1.11

1.09

− 2.36

1.43

5.18

7

1.04

1.78 (0.09)

0.91

0.92

− 2.00

1.79

5.54

Perceived benefit and intention to change of PA

8

2.11

− 2.03 (0.09)

1.28

1.13

− 5.10

− 2.31

1.31

9

2.08

− 1.92 (0.09)

0.90

0.92

− 4.98

− 2.20

1.43

10

1.87

− 1.13 (0.09)

0.62

0.66

− 4.20

− 1.41

2.21

11

1.89

− 1.20 (0.09)

0.59

0.63

− 4.27

− 1.49

2.14

12

1.69

− 0.49 (0.08)

1.24

1.24

− 3.56

− 0.77

2.85

13

1.91

− 1.26 (0.09)

0.99

1.01

− 4.32

− 1.54

2.09

Perceived benefit and intention to change of dietary habit

14

1.92

− 1.55 (0.09)

1.16

1.12

− 5.21

− 1.65

2.21

15

1.80

− 1.06 (0.09)

0.82

0.83

− 4.72

− 1.17

2.69

16

1.68

− 0.58 (0.09)

0.52

0.54

− 4.24

− 0.69

3.17

17

1.72

− 0.74 (0.09)

0.60

0.62

− 4.39

− 0.84

3.02

18

1.60

− 0.28 (0.09)

0.87

0.88

− 3.93

− 0.38

3.48

19

1.65

− 0.46 (0.09)

1.36

1.36

− 4.11

− 0.56

3.30

20

1.74

− 0.82 (0.09)

1.08

1.10

− 4.48

− 0.92

2.94

  1. τi = Threshold of respective categories.