Dose-effect relations in time-limited psychotherapy for depression

M Barkham, A Rees, WB Stiles, DA Shapiro, GE Hardy, SA Reynolds

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Abstract

Criteria for reliable and clinically significant improvement were applied to standard and individually tailored outcome measures data from 212 depressed clients who had been randomly assigned to receive either 8 or 16 sessions of time-limited psychotherapy. The data were used to address 2 questions: (a) Is the dose-effect curve for psychological symptoms negatively accelerated? and (b) is there a differential rate of response for acute, chronic, and characterological/interpersonal components of depression? The results supported the differential rate of response of different components of depression and suggested qualifications to the acute, chronic, and characterological/interpersonal components and evidence that both supported and qualified previous suggestions that the dose effect curve is negatively accelerated.
Original languageEnglish
Pages (from-to)927-935
Number of pages9
JournalJournal of Consulting and Clinical Psychology
Volume64
Issue number5
DOIs
Publication statusPublished - 1996

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