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Table 3 Inter-rater reliability: Intraclass Correlation Coefficients and ANCOVA for repeated measures

From: Psychometric properties of the quality of life in short statured youth (QoLISSY) questionnaire within the course of growth hormone treatment

 

Patient-Reports (N = 55)

Parent-reports (N = 55)

ANCOVA for repeated measures

ICC [CI]

M (SD)

M (SD)

F

p

Ŋp2

Physical

T0

56.74 (26.59)

48.94 (24.71)

2.36

.13

.04

.56** [.36–.71]

T1

59.60 (25.93)

51.10 (24.86)

.01

.93

.00

.44** [.23–.62]

Social

T0

54.27 (26.65)

43.32 (23.57)

2.91

.09

.05

.74** [.60–.83]

T1

62.59 (24.75)

48.38 (26.62)

.22

.64

.01

.44** [.22–.61]

Emotional

T0

53.76 (26.79)

41.88 (22.36)

.36

.55

.01

.67** [.50–.78]

T1

63.49 (23.32)

49.05 (24.73)

.06

.80

.00

.58** [.39–.72]

Coping

T0

62.18 (22.34)

52.42 (18.90)

2.87

.10

.05

.35** [.11–.56]

T1

60.90 (16.22)

48.81 (14.82)

4.98

.03

.13

.29* [.03–.50]

Beliefs

T0

48.75 (32.00)

46.02 (30.37)

.02

.89

.00

.61** [.44–.75]

T1

51.25 (32.68)

48.75 (30.40)

.78

.38

.02

.56** [.36–.70]

Treatment

T0

T1

62.88 (16.99)

60.10 (16.88)

5.38

.03

.13

.45** [.19–.65]

Total Score a

T0

55.91 (24.46)

44.81 (22.12)

2.39

.13

.04

.74** [.60–.83]

T1

62.58 (22.95)

53.53 (24.03)

.01

.92

.00

.55** [.36–.70]

  1. Note: M = Mean, SD = Standard deviation, F=F-value, p = P-value, Ŋp2 = partial eta square, ICC=Intraclass correlation coefficient (two-way mixed model, absolute agreement, 95% confidence interval [CI], T0 = baseline, T1 = 12 month after start of hGH treatment
  2. * p < .05; ** p < .01, two-tailed
  3. a sum of the scales physical, social, emotional