Adolescent self-report and parent proxy-report of health-related quality of life: an analysis of validity and reliability of PedsQL™ 4.0 among a sample of Malaysian adolescents and their parents

Table 2 Summary of CFA & reliability results for PedsQL™ 4.0

	Cronbach coefficient α	Range of factor loadings	AVE	Construct reliability (CR)	CFI	NFI	TLI	RMSEA	CMIN/df	Convergent validity	Discriminant validity
PedsQL adolescent self-report Lower order
Physical function	0.861	0.54-0.84	0.564	0.871	0.938	0.927	0.909	0.06	1.280	Valid	Valid
Emotional function	0.817	0.53-0.84	0.588	0.823				0.06	4.527	Valid	Valid
Social function	0.850	0.66-0.83	0.539	0.853	0.965	0.958	0.896	0.08	3.868	Valid	Valid
School function	0.750	0.58-0.69	0.599	0.768				0.08	4.380	Valid	Valid
Higher order					0.981	0.975	0.943
Physical health					0.903	0.941	0.860
Psychosocial health	0.861	0.54-0.84	0.564	0.871				0.06	1.280	Valid	Valid
	0.890	0.53-0.87	0.698	0.827				0.08	3.891	Valid	Valid
					0.838	0.827	0.709
					0.903	0.821	0.930
PedsQLparent proxy-report Lower order
Physical function	0.901	0.80-0.96	0.810	0.972	0.947	0.943	0.905	0.06	11.517	Valid	Valid
Emotional function	0.810	0.86-0.92	0.800	0.952				0.08	4.115	Valid	Valid
Social function	0.722	0.82-0.88	0.723	0.929	0.984	0.981	0.951	0.04	65.320	Valid	Valid
School function	0.775	0.77-0.96	0.797	0.951				0.06	22.356	Valid	Valid
Higher order					0.913	0.912	0.939
Physical health	0.901	0.80-0.96	0.810	0.972				0.06	11.517	Valid	Valid
Psychosocial health	0.949	0.77-0.96	0.624	0.899	0.972	0.971	0.972	0.07	11.951	Valid	Valid
					0.947	0.43	0.905
					0.932	0.94	0.911

Note: CMIN/df- chi-square/ degrees of freedom, CFI- Comparative Fit Index, NFI- Normed Fit Index, TLI- Tucker Lewis Index, AVE- Average Variance Extracted, RMSEA- Root Mean Squared Error of Approximation.

ISSN: 1477-7525