Table 3.

Confirmatory factor analysis results.

Model	(χ2/df)	RMSEA	CFI	TLI
Three-factor model	2.604	0.058	0.914	0.906
Two-factor model	3.231	0.067	0.903	0.858
Single-factor model	3.923	0.077	0.871	0.813

Note. (χ²/df) represents the goodness of fit index, if (χ²/df) < 3, it shows the goodness of fit of the model; the root-mean-square error of approximation (RMSEA) denotes the index showing that the evaluation model does not fit, if RMSEA < 0.08, it shows the goodness of fit of the model; the comparative fit index (CFI) and Tucker–Lewis Index (TLI) represent a comparative fit index; if CFI > 0.9 and TLI > 0.9, respectively, it shows that the goodness of fit of the model is within an acceptable range.