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The inventory to diagnose depression, lifetime version
Author(s) -
Zimmerman M.,
Coryell W.
Publication year - 1987
Publication title -
acta psychiatrica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.849
H-Index - 146
eISSN - 1600-0447
pISSN - 0001-690X
DOI - 10.1111/j.1600-0447.1987.tb02824.x
Subject(s) - depression (economics) , psychology , psychiatry , economics , macroeconomics
— The lifetime version of the Inventory to Diagnose Depression (IDDL) is a 22‐item self‐report scale designed to diagnose a lifetime history of DSM‐III major depressive disorder (MDD). One hundred and sixty‐four first‐degree relatives of healthy control probands completed the IDDL and were interviewed with the Diagnostic Interview Schedule (DIS). The IDDL had good internal consistency (Cronbach's alpha = 0.92), split‐half reliability (Spearman‐Brown coefficient = 0.90), and all of the item total correlations were significant. The lifetime prevalence of MDD was nonsignificantly higher in the IDDL than the DIS (14.8% vs. 11.7%). Using the DIS as the criterion measure, the sensitivity of the IDDL was 74% and its specificity was 93% and the chance corrected agreement between the two measures was kappa = 0.60.