Health-related quality of life in Iranian adolescents: a psychometric evaluation of the self-report form of the PedsQL 4.0 and an investigation of gender and age differences

Table 3 Internal consistency (n = 326) and test–retest reliability (n = 115) for the PedsQL 4.0

PedsQL 4.0	Number of Items	Internal consistency		Test–retest reliability
PedsQL 4.0	Number of Items	α	ω_t	ICC
Physical functioning	8	0.82	0.83	0.80
Emotional functioning	5	0.83	0.84	0.88
Social functioning	5	0.80	0.81	0.86
School functioning	5	0.81	0.81	0.74
Psychosocial health	15	0.90	0.90	0.87
Total score	23	0.92	0.92	0.87

ISSN: 1477-7525