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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.