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Table 4 Infit and outfit MNSQ statistics, item difficulties, and step parameters for each item (N = 185)

From: Psychometric properties of the Korean version of the medical outcomes study HIV health survey: results from a multicenter survey in Korea

Item

Infit

Outfit

Diff.

Step 1

Step 2

Step 3

Step 4

Step 5

PHS

 GHP 1

1.07

1.09

1.68

−3.41

−1.60

1.40

3.61

–

 P2

1.37

1.37

−0.87

−1.48

−1.15

0.37

0.63

1.63

 P3

0.97

1.04

−1.19

−1.44

−0.68

1.14

0.98

–

 PF 4a

1.01

1.04

0.54

−1.12

1.12

–

–

–

 PF 4b

0.84

0.76

− 0.24

− 0.74

0.74

–

–

–

 PF 4c

0.96

1.18

−0.09

− 0.96

0.96

–

–

–

 PF 4d

0.91

0.70

−0.47

− 0.79

0.79

–

–

–

 PF 4e

1.12

0.80

− 0.93

0.20

− 0.20

–

–

–

 PF 4f

1.30

0.83

−1.02

1.45

− 1.45

–

–

–

 RF 5

0.69

0.50

−0.41

–

–

–

–

–

 RF 6

0.73

0.54

−0.23

–

–

–

–

–

 SF 7

0.95

0.99

−0.81

0.25

−1.32

−0.51

0.93

0.65

 GHP 11a

0.96

0.93

1.06

−2.21

−0.17

−0.23

2.61

 

 GHP 11b

1.19

1.20

1.01

−2.22

−0.43

− 0.66

3.31

 

 GHP 11c

1.05

1.00

1.36

−2.35

−0.40

−0.59

3.34

 

 GHP 11d

1.16

1.27

0.61

−1.82

−0.06

− 0.37

2.25

 

MHS

 MH 8a

0.75

0.66

−0.45

−1.15

− 0.24

−0.34

0.61

1.12

 MH 8b

1.80

2.27

0.74

−1.26

−0.79

0.48

−0.14

1.71

 MH 8c

0.74

0.75

−0.16

−0.96

− 0.78

−0.57

1.07

1.25

 MH 8d

1.47

1.54

0.82

−1.14

−0.81

0.15

0.62

1.18

 MH 8e

1.25

1.07

−0.36

− 0.98

−0.59

− 0.05

0.60

1.02

 EF 9a

1.13

1.13

0.76

−2.16

−1.16

0.45

1.17

1.69

 EF 9b

0.82

0.84

−0.25

−0.77

−0.96

− 0.64

0.72

1.65

 EF 9c

0.90

0.92

0.16

−1.60

−1.45

−0.18

1.02

2.21

 EF 9d

1.30

1.28

0.59

−1.38

−1.14

0.17

0.94

1.41

 HD 9e

0.73

0.73

0.01

−0.36

−0.72

−0.81

0.87

1.02

 HD 9f

0.70

0.63

−0.02

− 0.41

−0.70

− 0.48

0.72

0.88

 HD 9 g

0.65

0.61

−0.08

−0.44

− 0.33

−0.69

0.93

0.53

 HD 9 h

0.91

0.88

0.01

−0.76

− 0.57

−0.31

0.52

1.12

 CF 10a

0.79

1.33

−0.28

−0.10

− 0.73

−0.49

0.55

0.77

 CF 10b

1.22

1.24

−0.55

−0.52

−1.00

− 0.76

0.91

1.37

 CF 10c

0.86

0.78

−0.69

−1.20

−0.19

− 0.79

0.85

1.34

 CF 10d

0.93

0.84

−0.93

−0.62

−1.41

− 0.25

1.11

1.17

 QL 12

0.82

0.82

0.67

−1.50

−2.17

0.68

3.00

–

  1. GHP General Health Perception, P Pain, PF Physical Functioning, RF Role Functioning, SF Social Functioning, MH Mental Health, EF Energy/Fatigue, HD Health Distress, CF Cognitive Functioning, QL Quality of Life, PHS Physical Health Summary Score, MHS Mental Health Summary Score
  2. Infit and outfit MNSQ statistics higher than 1.4 or lower than 0.6 as well as disordered step parameters are shown in bold