The validity and IRT psychometric analysis of Chinese version of Difficult Doctor-Patient Relationship Questionnaire (DDPRQ-10)

Table 3 Model fit indices of different models

Items on the DDPRQ-10	χ²	df	P	RMSEA	CFI	TLI	SRMR
One-factor model	92.451	35	< .0001	0.165	0.895	0.865	0.051
Two-factor model	59.275	34	.0046	0.111	0.954	0.939	0.044
Two-factor model (modified)	44.214	33	.0919	0.075	0.979	0.972	0.042

Notes: The chosen model is shown in bold
Abbreviations: CFI Comparative fit index, DDPRQ Difficult Doctor-Patient Relationship Questionnaire, RMSEA Root-mean-square-error of approximation, SRMR Standardized root mean square residual, TLI Tucker-Lewis index

ISSN: 1471-244X