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Table 2 Internal consistency and item analysis of traditional Chinese PedsQL-CM

From: Psychometric evaluation of the traditional Chinese version of PedsQL 3.0 cardiac module scale in adolescents with congenital heart disease: reliability, validity, measurement invariance, and adolescent-parent agreement

 

Cronbach’s alpha

McDonald’s omega

Alpha value if one item deleted

Item-total correlation

Self-report

Proxy-report

Self-report

Proxy-report

Self-report

Proxy-reports

Self-report

Proxy-report

Heart problems and treatment

0.80

0.87

0.82

0.87

0.75- 0.81

0.84–0.87

0.36- 0.72

0.48–0.76

Perceived physical appearance

0.71

0.83

0.77

0.86

0.45–0.72

0.69–0.85

0.45–0.66

0.61–0.76

Treatment anxiety

0.85

0.95

0.86

0.95

0.77–0.88

0.91–0.98

0.67–0.81

0.76–0.94

Cognitive problems

0.82

0.89

0.82

0.90

0.76–0.80

0.85–0.90

0.55–0.69

0.62–0.83

Communication

0.82

0.82

0.82

0.83

0.65–0.84

0.67–0.85

0.59–0.78

0.61–0.77

Total scale

0.88

0.91

0.87

0.91

0.87–0.88

0.91–0.91

0.34–0.60

0.43–0.63