APA Citation
Zettle, R. D., & Rains, J. C. (1989). Group cognitive and contextual therapies in treatment of depression. Journal of Clinical Psychology, 45, 438-445. https://doi.org/10.1002/1097-4679(198905)45:3%3C436::AID-JCLP2270450314%3E3.0.CO;2-L
Publication Topic
ACT: Empirical
Publication Type
Article
RCT
Language
English
Keyword(s)
ACT, CT, depression
Abstract
Small controlled trial. Shows that ACT is as effective as Beck's cognitive therapy for depression when presented in a group format, and that it works by a different process. Although there were no statistically significant differences in this small study between ACT and CT, on the BDI the effective size in favor of ACT at post (Cohen's d) was .53 and at follow up was .75 ... fairly large and similar to the significant effects in Zettle and Hayes, 1986.
Comments
Small controlled trial. Shows that ACT is as effective as cognitive therapy for depression when presented in a group format, and that it works by a different process. The effect sizes in favor of ACT are about .6