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Convergent validity of the CORE measures with measures of depression for clients in cognitive therapy for depression

Abstract:

Clients (N = 77) undergoing cognitive therapy for depression were assessed before treatment with the Clinical Outcomes in Routine Evaluation-Outcome Measure (CORE-OM), which encompasses domains of subjective well-being, problems, functioning, and risk of harming self or others, along with the Beck Depression Inventory-II (BDI-II), the Hamilton Rating Scale for Depression (HRSD), the Beck Hopelessness Scale (BHS), and a measure of avoidant (Cluster C) personality problems (Inventory of Interpersonal Problems-Avoidant [IIP-Av]). The CORE-OM and the BDI-II were strongly correlated with each other and showed coherent and similar patterns of correlations with the HRSD, the BHS, and the IIP-Av. Sixty-one of the clients were repeatedly assessed during treatment with alternating versions of the CORE Short Form and with the BDI-II. Results strongly supported the convergent validity of the CORE measures with the BDI-II in across-clients comparisons of means scores and rates of improvement and in across-sessions comparisons within clients. Copyright 2006 by the American Psychological Association.