This dictionary serves as a comprehensive reference tool designed to provide precise, standardized definitions for the vast terminology utilized across the psychological sciences. Andrew M. Colman, a professor of psychology, leverages his academic background to curate a lexicon that bridges the gap between theoretical research and clinical application. The work functions as a foundational resource for students and professionals, organizing complex concepts into accessible, standardized entries.

Academic reviewers and students frequently cite this volume as a standard reference text due to its breadth and clarity. Experts highlight the dictionary's utility in maintaining consistent terminology across the diverse and often overlapping branches of the behavioral sciences.