Stephen N Haynes is an Emeritus Professor of Psychology at the University of Hawai'i at Manoa in Clinical Psychology. Dr. Haynes was previously the Director of Clinical Psychology and Department Chair in psychology. He was editor of the APA journal Psychological Assessment, has served on 14 editorial boards, and has published 8 books and 130 articles and chapters on clinical assessment and psychopathology.

Gregory T Smith is a Professor of Psychology and University Research Professor at the University of Kentucky. He has published over 200 research articles and book chapters, the majority of which focus on clinical psychological assessment. He served for 12 years as the director of the doctoral program in clinical psychology at the University of Kentucky and is now Chair of the Psychology Department there.

John Hunsley is a Professor of Psychology and Director of the Clinical Psychology Program in the School of Psychology at the University of Ottawa. He published over 130 articles, chapters, and books related to assessment, evidence-based practice, and professional issues in psychology.