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Table 2 Score distributions, floor and ceiling responses and internal consistency of KINDL-Kid (Singapore) and KINDL-Kiddo (Singapore) subscales

From: Factor structure of the Singapore English version of the KINDL® children quality of life questionnaire

KINDL-Kid Subscale

Mean (SD)

Range

Floor Responses (N, %)

Ceiling Responses (N, %)

Internal Consistency

TOTAL

65.5 (12.76)

31.3 to 100

0

2 (0.6)

0.79

PH

75.1 (17.08)

12.5 to 100

0

53 (16.2)

0.49

GEN

76.7 (17.47)

12.5 to 100

0

39 (11.9)

0.50

PER

44.0 (25.10)

0 to 100

24 (7.3)

12 (3.7)

0.71

FAM

71.9 (18.56)

25 to 100

0

36 (11.0)

0.46

FREN

66.2 (20.79)

12.5 to 100

0

22 (6.7)

0.52

SCH

59.0 (20.32)

0 to 100

3 (0.9)

18 (5.4)

0.40

KINDL-Kiddo Subscale

Mean (SD)

Range

Floor Responses (N, %)

Ceiling Responses (N, %)

Internal Consistency

TOTAL

56.6 (11.92)

3.1 to 95.8

0

0

0.83

PH

61.4 (16.66)

0 to 100

3 (0.3)

9 (0.9)

0.62

GEN

66.8 (17.36)

0 to 100

2 (0.2)

28 (2.7)

0.63

PER

39.7 (22.69)

0 to 100

57 (5.6)

35 (3.4)

0.84

FAM

68.3 (20.93)

0 to 100

3 (0.3)

76 (7.4)

0.76

FREN

62.2 (17.53)

0 to 100

4 (0.4)

21 (2.1)

0.61

SCH

41.4 (16.57)

0 to 100

18 (1.8)

3 (0.3)

0.44

  1. Abbreviations: TOTAL = Total QoL Scores; PH = Physical health; GEN = General health; PER = Self-esteem; FAM = Family functioning; FREN = Social functioning; SCH = School functioning.
  2. Internal consistency was measured using Cronbach's alpha.