Factorial validity and invariance of the Patient Health Questionnaire (PHQ)-9 among clinical and non-clinical populations.

The Patient Health Questionnaire-9 (PHQ-9) is commonly used to screen for depressive disorder and for monitoring depressive symptoms. However, there are mixed findings regarding its factor structure (i.e., whether it has a unidimensional, two-dimensional, or bi-factor structure). Furthermore, its me...

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Bibliographic Details
Main Authors: Satomi Doi, Masaya Ito, Yoshitake Takebayashi, Kumiko Muramatsu, Masaru Horikoshi
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2018-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC6053131?pdf=render