Table 2. Results of the confirmatory factor analysis.

* Satisfied with the predetermined unidimensionality criteria

ADFI, adjusted goodness-of-fit index; CFI, comparative fit of index; CMIN/df, chi-squared/degree of freedom; GFI, goodness-of-fit index; PUnCQ, Pain Understanding and Confidence Questionnaire; RMSEA, root mean square error of approximation; SRMR, standardized root mean square residual

PUnCQ	CMIN/df	CFI	GFI	ADFI	RMSEA	SRMR
Part 1	0.868*	1.000*	0.935*	0.906*	<0.001*	0.070*
Part 2	4.516	0.778	0.545	0.444	0.178	0.068*