William P. Erchul, Ph.D., ABPP, is currently a Research Professor in the Sanford School of Social and Family Dynamics at Arizona State University. He is also a Professor of Psychology Emeritus at North Carolina State University where he served as a faculty member for 30 years and as Director of its Ph.D. training program in school psychology for 20 years. He is a Fellow of the American Psychological Association, recipient of APA Division 16’s Lightner Witmer Award, Past President of the American Academy of School Psychology, and Past President of the Society for the Study of School Psychology. His primary research program centers on interpersonal processes and outcomes associated with psychological consultation, and he has focused on issues of relational communication and social influence in much of this research. To date, Dr. Erchul has produced approximately 100 scholarly works, has been associate editor of School Psychology Quarterly, and currently serves on the editorial review boards of seven scholarly journals.