Nasiakos, G.Cribbie, RobertArpin-Cribbie, C. A.2018-06-032018-06-032010Nasiakos, G., Cribbie, R. A., & Arpin-Cribbie, C. A. (2010). Equivalence based tests of clinical significance: Assessing treatments for depression. Psychotherapy Research, 20, 647-656. doi: 10.1080/10503307.2010.501039DOI: 10.1080/10503307.2010.501039http://hdl.handle.net/10315/34595Treatment efficacy is largely determined by statistical significance testing, and clinical significance testing is often used to quantify or qualify the efficacy of a treatment at the individual or group level. This study applies the equivalence based clinical significance model proposed by Kendall, Marrs-Garcia, Nath and Sheldrick (1999), and a revised model proposed by Cribbie and Arpin-Cribbie (2009), to the assessment of treatments for depression. Using several studies that investigated treatments for depression, we tested whether the post-treatment means were equivalent to the means for a similar normal comparison group. All of the studies had significant improvement from pretest to posttest, although for many of the studies the treated group was not equivalent to a normal comparison group at posttest. Further, there are important differences between the conclusions drawn from the Kendall et al. and Cribbie and Arpin-Cribbie methods for assessing equivalence based clinical significance.enequivalence testingclinical significancedepression treatmentArticlehttps://www.tandfonline.com/loi/tpsr20https://www.tandfonline.com/https://www.ncbi.nlm.nih.gov/pubmed/20803383#