Skip Navigation LinksHome > December 2012 - Volume 11 - Issue 4 > Examining Changes in Depressive Symptoms During Substance Ab...
Addictive Disorders & Their Treatment:
doi: 10.1097/ADT.0b013e31824709bb
Original Articles

Examining Changes in Depressive Symptoms During Substance Abuse Treatment in the Context of Regression to the Mean

Adams, Claire E. PhD*; Houle, Timothy T. PhD; Parker, Jefferson D. PhD‡,§; Burke, Randy S. PhD‡,§

Collapse Box

Abstract

Objectives: The following study illustrates some of the statistical and methodological challenges associated with examining short-term changes in depressive symptoms among individuals participating in substance abuse treatment.

Methods: Participants (N=146) were male military veterans that were participating in primary residential or day hospital-based substance abuse treatment. All participants completed a self-report measure of depressive symptoms upon admission and just before program completion.

Results: Initial statistical analyses showed significant improvements, however, additional analyses indicated that some of the observed change was likely because of regression to the mean.

Conclusions: The confounding effects of regression to the mean are discussed, along with an examination of analytical, ethical, and methodological issues that make it difficult to control for regression to the mean artifacts. Alternative methodological and analytical approaches are explored and directions for future research are discussed.

© 2012 Lippincott Williams & Wilkins, Inc.

Login

Search for Similar Articles
You may search for similar articles that contain these same keywords or you may modify the keyword list to augment your search.