Construct Validity and Differential Item Functioning of the PHQ-9 Among Health Care Workers: Rasch Analysis Approach.
Neuropsychiatr Dis Treat. 2021 Apr 8;17:1035-1045. doi: 10.2147/NDT.S271987. eCollection 2021.
Neuropsychiatr Dis Treat. 2021.
PMID: 33854319
Free PMC article.