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Table 2 Descriptive statistics and reliability estimates on QoLISSY scale level for the US sample in comparison with the European sample (children)

From: Evaluation of the American-English Quality of Life in Short Stature Youth (QoLISSY) questionnaire in the United States

Children

Descriptive statistics

Reliability

N

Mean

SD

Skewness

% Floor

% Ceiling

N

α

Split-half

ICC

Physical*

49

75.54

19.89

−0.91

2.0

8.2

48

0.85

0.87

0.82

US sample

European sample

268

73.69

20.08

−0.95

0.4

12.3

263

0.84

0.83

0.80

Social*

50

71.42

20.72

0.21

2.0

8.0

49

0.92

0.94

0.69

US sample

European sample

268

72.94

22.93

−0.79

0.4

10.4

265

0.87

0.83

0.80

Emotional*

50

73.13

19.35

−0.84

2.0

10.0

49

0.89

0.95

0.48

US sample

European sample

268

72.69

23.87

−0.94

1.1

10.1

259

0.88

0.88

0.85

Coping

48

50.46

20.61

0.25

2.1

2.1

45

0.57**

0.53

0.77

US sample

European sample

257

55.60

22.38

−0.19

1.2

1.2

244

0.82

0.65

0.56

Beliefs

49

69.34

27.40

−0.75

2.0

22.4

49

0.87

0.87

0.59

US

European sample

266

69.13

28.59

−0.78

3.8

21.1

263

0.85

0.85

0.83

Treatment

43

49.82

19.06

0.32

2.3

2.3

41

0.84

0.70

0.67

US

European sample

152

55.12

21.06

−0.13

0.7

0.7

143

0.87

0.74

0.73

QoL Total Score

49

73.75

21.35

−0.82

2.0

2.0

47

0.96

0.93

0.72

US sample

European sample

268

73.10

21.39

−0.80

0.4

4.9

251

0.95

0.92

0.88

  1. *The QoL total Score is the sum of the physical, social and emotional scale.
  2. **If item three is deleted, Cronbachs alpha would be 0.81.