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Table 1 Item and category fit indices for self child-report in the KIDSCREEN-27

From: Item and response-category functioning of the Persian version of the KIDSCREEN-27: Rasch partial credit model

 

Item indices

Category fit indices

 

Difficulty

Infit

Outfit

Average measure, step calibration, infit, outfit

Physical well-being

1

2

3

4

5

1. how would you say your health is

−0.42

1.01

1.01

−0.92, none, 1.52, 1.81

−0.35, -1.74, 1.05, 1.12

0.32, -0.77, 0.86, 0.81

1.15, 0.74, 0.97, 1.03

2.01, 1.71, 1.03, 1.02

2. Felt fit and well

0.12

1.12

1.09

−0.25, none, 1.87, 2.15

0.04, -1.17, 1.32, 1.43

0.33, -1.03, 0.82, 0.74

1.33, 0.37, 0.87, 0.97

2.22, 1.82, 0.97, 0.97

3. Been physically active

0.39

0.93

0.95

−0.58, none, 1.05, 1.05

−0.02, 1.04, 0.72, 0.65

0.74, -0.71, 1.01, 1.00

1.41, 0.60, 0.89, 0.95

2.20, 1.15, 0.95, 0.98

4. Been able to run well

−0.10

0.87

0.87

−1.00, none, 0.90, 0.92

−0.38, -2.00, 0.66, 0.64

0.62, -0.41, 0.96, 0.89

1.30, 0.87, 0.83, 0.97

2.14, 1.54, 0.97, 0.98

5. Felt full of energy

0.00

1.04

1.05

−0.94, none, 1.16, 1.24

−0.44, -1.53, 0.86, 0.86

0.54, -1.54, 0.86, 0.93

1.52, 0.66, 0.86, 0.27

2.00, 2.41, 1.27, 1.21

Psychological well-being

1. Your life been enjoyable

−0.34

0.85

0.87

−1.70, none, 0.69, 0.65

−0.70, -1.30, 0.65, 0.59

0.21, -1.18, 0.78, 0.71

1.04, 0.64 ,0.86, 1.13

1.81, 1.57, 1.05, 1.03

2. Been in a good mood

−0.33

0.82

0.81

−1.77, none, 0.79, 0.79

−0.61, -2.18, 0.83, 0.80

0.24, -0.59, 0.80, 0.76

1.06, 0.53, 0.77, 0.73

2.12, 2.25, 0.88, 0.91

3. Had fun

0.02

1.22

1.25

−0.60, none, 1.79, 1.93

−0.26, -2.07, 1.12, 1.20

0.48, -0.64, 1.12, 1.18

1.17, 0.57, 1.17, 1.20

2.03, 2.14, 1.17, 1.13

4. Felt sad

0.35

0.93

0.95

−1.13, none, 1.04, 1.09

−0.37, -1.68, -0.97, 1.03

0.66, -0.97, 0.99, 1.03

1.26, 0.22, 0.96, 0.98

2.34, 2.44, 0.96, 0.97

5. Felt so bad that you didn’t want to do anything

0.20

1.14

1.13

−0.09, none, 1.41, 1.39

−0.25, -2.14, 0.91, 0.90

0.70, -0.70, 1.15, 1.12

1.23, 0.87, 1.15, 1.15

2.15, 1.97, 1.22, 1.20

6. Felt lonely

0.20

1.17

1.22

−0.69, none, 1.48, 1.68

−0.12, -0.90, 0.91, 0.95

0.57, -0.59, 1.11, 1.27

0.95, 0.50, 1.30, 1.12

1.94, 1.00, 1.07, 1.11

7. Been happy with the way you are

−0.10

0.84

0.80

−1.26, none, 1.06, 1.21

−0.31, -1.14, 0.87, 0.80

0.17, -0.38, 0.69, 1.60

0.99, 0.18, 0.64, 0.54

2.04, 1.59, 0.90, 0.95

Autonomy and parent relation

1. Had enough time for yourself

0.41

1.11

1.08

−0.29, none, 1.06, 1.21

0.11, -1.77, 1.03, 1.03

0.66, -0.52, 1.02, 1.00

1.41, 0.70, 0.87, 0.88

1.98, 1.59, 1.26, 1.23

2. Been able to do thing

0.50

1.09

1.07

−0.31, none, 1.35, 1.33

0.14, -1.71, 0.96, 0.93

0.61, -0.61, 0.93, 0.85

1.56, 0.54, 0.77, 0.84

1.91, 1.78, 1.37, 1.32

3. Your parent had enough time for you

−0.18

0.84

0.80

−1.04, none, 0.74, 0.69

−0.14, -0.97, 0.95, 0.89

0.22, -0.26, 0.76, 0.59

0.93, 0.12, 0.76, 0.78

1.73, 1.11, 0.91, 0.94

4. Your parent treated you fairly

−0.77

0.83

0.76

−1.59, none, 0.70, 0.79

−0.57, -1.08, 0.87, 0.72

−0.05, -0.38, 0.76, 0.77

0.71, 0.38. 0.81, 0.77

1.53, 1.08, 0.91, 0.95

5. Been able to talk to your parent

−0.10

0.97

1.05

−0.84, none, 0.96, 1.01

−0.21, -0.82, 0.85, 0.78

0.37, -0.49, 0.91, 0.92

1.11, 0.31, 0.94, 1.43

1.61, 1.00, 1.08, 1.07

6. Had enough money to do things as your friend

0.28

1.08

1.05

−0.52, none, 1.11, 1.12

0.05, -0.94, 0.98, 1.03

0.62, -0.48, 0.95, 0.92

1.21, 0.30, 0.88, 0.91

1.79, 1.12, 1.28, 1.20

7. Had enough money for your expenses

−0.14

1.06

1.06

−0.67, none, 1.26, 1.55

−0.15, -1.02, 1.02, 1.17

0.38, -0.30, 0.93, 0.91

0.96, 0.32, 0.83, 0.79

1.67, 0.99, 1.14, 1.09

Social support and peers

1. Spent time with your friends

0.30

1.10

1.09

−0.91, none, 1.42, 1.46

−0.49, -2.25, 0.89, 0.89

0.53, -0.97, 0.98, 0.97

1.55, 0.55, 0.99, 1.02

2.33, 2.66, 1.33, 1.23

2. Had fun with your friends

−0.20

0.83

0.83

−1.56, none, 0.96, 0.98

−0.81, -1.66, 0.74, 0.70

0.10, -1.03, 0.71, 0.65

1.24, 0.43, 0.71, 0.80

2.22, 2.26, 1.02, 1.00

3. You and your friends helped each other

−0.53

0.96

0.94

−2.01, none, 0.70, 0.70

−0.86, -2.15, 0.88, 0.86

0.12, -1.04, 0.86, 0.83

1.15, 0.94, 0.85, 0.84

2.09, 2.24, 1.21, 1.18

4. Been able to rely on your friends

−0.43

1.08

1.07

−0.95, none, 1.21, 1.18

−0.21, -1.92, 0.94, 0.92

0.60, -0.56, 1.00, 0.97

1.59, 0.56, 0.87, 0.96

2.29, 1.92, 1.34, 1.29

School environment

1. Been happy at school

0.27

1.05

1.03

−0.92, none, 1.01, 1.02

−0.08, -1.66, 1.10, 1.12

0.63, -1.29, 0.92, 0.88

1.55, 0.77, 1.03, 1.03

2.44, 2.18, 1.15, 1.11

2. Got on well at school

0.21

0.89

0.89

−0.97, none, 1.03, 1,03

−0.44, -1.87, 0.78, 0.77

0.62, -1.52, 0.82, 0.79

1.66, 1.06, 0.79, 0.83

2.55, 2.33, 1.02, 1,03

3. Been able to pay attention

−0.09

0.94

0.92

−0.99, none, 1.14, 1.14

−0.36, -2.51, 0.96, 0.95

0.40, -1.02, 0.75, 0.71

1.54, 0.69, 0.91, 0.93

2.48, 2.83, 1.05, 1.03

4. Got along well with your teachers

−0.39

1.09

1.18

−1.06, none, 1.15, 1.37

−0.50, -1.01, 0.92, 0.97

0.24, -0.75, 0.99, 1.10

1.13, 0.20, 0.97, 1.26

1.92, 1.57, 1.29, 1.18