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Table 2 Goodness-of-fit indices for four- and second-order factor model in the PedsQL™ 4.0 Generic Core Scales: Child self-report and parent proxy-report

From: Validation of the Korean version of the pediatric quality of life inventory™ 4.0 (PedsQL™) generic core scales in school children and adolescents using the rasch model

Scale

Four-factor model

Second-order factor model

 

χ2

df

CFI

TLI

RMSEA

χ2

df

CFI

TLI

RMSEA

Child self-report

          

Total (N = 1425)

1114.051*

98

.897

.961

.085

1055.771*

96

.902

.962

.084

Ages 8–12 (N = 633)

469.769*

92

.906

.955

.081

472.812*

92

.905

.955

.081

Ages 13–18 (N = 792)

535.513*

77

.934

.972

.087

490.199*

74

.940

.974

.084

Parent proxy-report

          

Total (N = 1431)

826.681*

77

.942

.974

.082

806.168*

77

.944

.975

.081

Ages 8–12 (N = 638)

410.812*

68

.938

.968

.089

417.768*

68

.936

.967

.090

Ages 13–18 (N = 793)

399.522*

67

.959

.980

.079

376.245*

66

.962

.981

.077

  1. CFI = Comparative fit index. TLI = Tuker-Lewis index. RMSEA = Root mean square error of approximation. *p < .00001.