Comparer des méthodes

	Inventaire de dépression de Beck-II (BDI-II)	Questionnaire de santé du patient-9 (PHQ-9)
Domaine	Psychologie clinique	Psychologie clinique
Famille	Process / pipeline	Process / pipeline
Année d'origine	1996	2001
Auteur d'origine	Aaron T. Beck	Kurt Kroenke
Type	Self-report questionnaire	Self-report questionnaire
Source fondatrice	Beck, A. T., Steer, R. A., & Brown, G. K. (1996). Beck Depression Inventory (2nd ed.). San Antonio, TX: The Psychological Corporation. ISBN: 9780151840045	Kroenke, K., Spitzer, R. L., & Williams, J. B. (2001). The PHQ-9: validity of a brief depression severity measure. Journal of General Internal Medicine, 16(9), 606–613.
Alias	BDI-II, Beck Depression Inventory Second Edition	PHQ-9, Patient Health Questionnaire Depression Module
Apparentées	4	5
Résumé	The Beck Depression Inventory-II is a 21-item self-report instrument designed to assess the presence and severity of depressive symptoms in adolescents and adults. Originally published by Aaron T. Beck in 1961 and revised significantly in 1996, the BDI-II is one of the most widely used depression assessment tools in clinical psychology and psychiatry. It is copyrighted and distributed by Pearson Assessments, and measures both cognitive and somatic symptoms of depression across a two-week timeframe.	The PHQ-9 is a brief, nine-item self-report questionnaire developed by Kroenke, Spitzer, and Williams to screen for and measure the severity of depressive symptoms. Published in 2001 in the Journal of General Internal Medicine, it has become one of the most widely used depression screening instruments globally. The scale maps directly to DSM-IV diagnostic criteria for major depressive disorder, making it valuable in both clinical and research settings.