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Table 2 Item and category fit indices for parent proxy-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

−0.32

1.22

1.21

−1.18, none, 1.55, 1.58

−0.16, -3.01, 1.45, 1.53

0.55, -0.79, 0.99, 0.98

1.70, 1.10, 1.01, 1.04

2.64, 2.70, 1.37, 1.33

2. Felt fit and well

−0.45

0.95

0.93

−0.82, none, 1.90, 2.20

−0.60, -2.01, 1.19, 1.20

0.24, -1.91, 0.85, 0.83

1.55, 0.90, 0.81, 0.77

2.89, 3.02, 0.91, 0.92

3. Been physically active

0.47

0.91

0.90

−0.87, none, 1.17, 1.16

−0.15, -1.69, 0.82, 0.80

0.83, -0.81, 0.81, 0.72

1.85, 0.78, 0.89, 1.00

2.84, 1.71, 0.93, 0.94

4. Been able to run well

0.29

0.89

0.90

−1.13, none, 0.91, 0.92

−0.34, -2.03, 0.90, 0.96

0.75, -1.04, 0.80, 0.76

1.83, 0.62, 0.90, 0.94

2.93, 2.45, 0.95, 0.96

5. Felt full of energy

0.01

0.99

1.00

−1.43, none, 1.10, 1.21

−0.79, -1.87, 0.82, 0.80

0.49, -1.77, 0.83, 0.81

1.88, 0.54, 0.89, 0.99

2.74, 3.10, 1.26, 1.19

Psychological well-being

1. Your life been enjoyable

−0.24

0.87

0.88

−1.64, none, 0.75, 0.73

−0.59, -1.76, 0.81, 0.78

0.32, -1.19, 0.82, 0.89

1.27, 0.80, 0.86, 0.91

2.16, 2.15, 0.99, 0.99

2. Been in a good mood

−0.23

0.79

0.78

−1.43, none, 1.00, 1.00

−0.77, -1.43, 0.70, 0.65

0.15, -1.26, 0.68, 0.63

1.18, 0.29, 0.75, 0.77

2.27, 2.49, 0.88, 0.91

3. Had fun

0.00

1.10

1.12

−1.26, none, 1.16, 1.28

−0.24, -2.17, 0.99, 1.01

0.51, -1.01, 1.07, 1.04

1.43, 0.78, 1.00, 1.11

2.11, 2.41, 1.26, 1.21

4. Felt sad

0.24

1.03

1.02

−0.95, none, 1.27, 1.37

−0.49, -1.76, 0.77, 0.78

0.66, -1.53, 0.93, 0.93

1.37, 0.77, 1.07, 1.02

2.48, 2.53, 1.11, 1.08

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

0.39

1.13

1.13

−0.70, none, 1.41, 1.45

−0.12, -2.01, 1.02, 1.04

0.79, -1.11, 1.14, 1.12

1.32, 0.96, 1.27, 1.25

2.54, 2.16, 0.97, 0.97

6. Felt lonely

−0.03

1.11

1.11

−0.73, none, 1.61, 1.71

−0.28, -1.08, 1.05, 1.11

0.43, -0.80, 0.95, 1.03

1.02, 0.64, 1.14, 1.03

2.03, 1.24, 0.98, 0.99

7. Been happy with the way you are

−0.11

0.93

0.93

−1.25, none, 1.61, 1.32

−0.52, -1.49, 0.81, 0.76

0.15, -1.09, 0.77, 0.71

1.32, 0.12, 0.72, 0.88

2.11, 2.46, 1.16, 1.09

Autonomy and parent relation

1. Had enough time for yourself

−0.20

1.15

1.12

−0.64, none, 1.17,1.20

0.07, -1.58, 1.23, 1.35

0.47, -0.59, 1.02, 1.02

1.12, 0.15, 1.02, 1.00

1.80, 1.99, 1.25, 1.13

2. Been able to do thing

−0.02

1.06

1.05

−0.77, none, 1.06, 1.06

0.07, -2.31, 1.08, 1.08

0.60, -0.67, 0.95, 0.95

1.32, 0.66, 0.93, 0.93

1.95, 2.15, 1.19, 1.14

3. Your parent had enough time for you

0.27

0.95

0.94

−0.27, none, 1.41, 1.59

−0.06, -1.53, 0.73, 0.67

0.58, -0.69, 0.79, 0.71

1.37, 0.26, 0.81, 0.90

2.06, 1.95, 1.07, 1.05

4. Your parent treated you fairly

−0.16

0.91

0.92

−0.46, none, 1.40, 1.69

−0.31, -1.01, 0.79, 0.80

0.35, -0.75, 0.81, 0.78

1.08, 0.22, 0.74, 0.75

1.89, 1.63, 0.93, 0.95

5. Been able to talk to your parent

−0.21

0.98

1.04

−0.74, none, 1.11, 1.22

−0.14, -1.21, 0.91, 0.98

0.38, -0.38, 0.85, 0.75

1.11, 0.20, 0.95, 1.27

1.73, 1.39, 1.06, 1.06

6. Had enough money to do things as your friend

0.20

1.02

1.05

−0.44, none, 1.21, 1.34

0.10, -1.26, 0.98, 1.04

0.66, -0.51, 0.99, 1.05

1.18, 0.34, 0.94, 0.95

1.95, 1.42, 1.01, 1.00

7. Had enough money for your expenses

0.12

0.90

0.87

−0.58, none, 1.05, 1.16

−0.04, -1.21, 0.79, 0.73

0.53, -0.41, 0.81, 0.70

1.22, 0.22, 0.77, 0.76

1.91, 1.40, 1.03, 1.01

Social support and peers

1. Spent time with your friends

0.55

1.06

1.06

−1.52, none, 1.31, 1.32

−0.51, -2.62, 0.95, 0.97

0.62, -1.06, 0.99, 0.97

1.73, 0.85, 0.91, 0.92

2.67, 2.82, 1.25, 1.23

2. Had fun with your friends

0.36

1.15

1.16

−2.57, none, 0.74, 0.76

−1.06, -2.65, 0.82, 0.81

0.03, -0.99, 0.72, 0.69

1.28, 0.92, 0.70, 0.71

2.54, 2.73, 0.85, 0.88

3. You and your friends helped each other

−0.36

0.77

0.77

−2.09, none, 1.52, 1.53

−1.20, -2.92, 0.83, 0.82

0.03, -0.89, 0.83, 0.77

1.25, 1.00, 0.87, 0.88

2.27, 2.82, 1.25, 1.22

4. Been able to rely on your friends

−0.55

1.00

0.97

−1.52, none, 1.38, 1.40

−0.54, -2.54, 1.03, 1.07

0.50, -0.90, 1.09, 1.12

1.52, 0.60, 1.10, 1.09

2.55, 2.84, 1.27, 1.20

School environment

1. Been happy at school

0.12

1.09

1.08

−1.01, none, 1.24, 1.31

−0.53, -2.14, 0.88, 0.86

0.61, -1.64, 1.04, 1.03

1.81, 0.85, 0.98, 1.01

2.73, 2.93, 1.30, 1.24

2. Got on well at school

0.41

0.84

0.84

−1.23, none, 0.83, 0.79

−0.42, -2.20, 0.85, 0.85

0.69, -1.42, 0.72, 0.70

2.01, 0.90, 0.73, 0.74

2.99, 2.72, 1.06, 1.05

3. Been able to pay attention

0.02

0.86

0.86

−1.58, none, 0.78, 0.79

−0.60, -2.92, 0.73, 0.69

0.52, -0.86, 0.74, 0.70

1.85, 0.61, 0.87, 0.91

2.84, 3.17, 1.10, 1.08

4. Got along well with your teachers

−0.55

1.21

1.22

−0.99, none, 1.59, 2.19

−0.52, -1.42, 1.23, 1.46

0.14, -0.85, 1.08, 1.19

1.13, 0.13, 0.99, 1.05

2.30, 2.14, 1.31, 1.15