Model

Factor

χ²/df

RMSEA

IFI

CFI

TLI

Four-factor model

CL, AL, TS, E

1.42

0.04

0.98

0.98

0.97

Three-factormodel

TS, CL + AL, E

3.00

0.08

0.86

0.86

0.85

Two-factor model

CL + AL + TS, E

3.57

0.09

0.82

0.82

0.81

Single factor model

CL + AL + TS + E

4.04

0.10

0.78

0.78

0.77