Research Methods in Psychology is adapted from a work produced and distributed under a Creative Commons license (CC BY-NC-SA) in 2010 by a publisher who has requested that they and the original author not receive attribution. This adapted edition is produced by the University of Minnesota Libraries Publishing through the eLearning Support Initiative.

This adaptation has reformatted the original text, and replaced some images and figures to make the resulting whole more shareable. This adaptation has not significantly altered or updated the original 2010 text. This work is made available under the terms of a Creative Commons Attribution-NonCommercial-ShareAlike license.