Core Symptom Index (CSI): testing for bifactor model and differential item functioning.

Nahathai WongpakaranTinakon WongpakaranSurang LertkachatarnThanitha SirirakPimolpun Kuntawong

Published in: International psychogeriatrics (2019)

CSI appears sufficiently unidimensional. Its total score reflected a single general factor, permitting users to interpret the total score as a sufficient reliable measure of the general factors. CSI could serve as a screening tool for MDD.

Keyphrases

major depressive disorder
psychometric properties
patient reported