Dr. William C. Sanderson is Professor of Psychology at Hofstra University (Long Island, NY) where he teaches and conducts research on the nature and treatment of anxiety disorders and depression. Dr. Sanderson is a clinical psychologist with expertise in Cognitive Behavior Therapy, an evidence-based type of psychotherapy.

Dr. Sanderson received his Ph.D. in 1987 working under the mentorship of Dr. David Barlow at the Center for Stress and Anxiety Disorders, University at Albany.  He then completed a Fellowship in Cognitive Therapy with Dr. Aaron T. Beck (the founder of Cognitive Therapy) at the Center for Cognitive Therapy, University of Pennsylvania. 

Dr. Sanderson is a Founding Fellow of the Academy of Cognitive Therapy. He has participated on numerous national committees, including the American Psychiatric Association's DSM-IV Anxiety Disorders Workgroup, served as Editor of The Clinical Psychologist, and was the Chair of the American Psychological Association Division of Clinical Psychology's Committee on Science and Practice (a Task Force aimed at identifying and promoting the practice of evidence-based psychological interventions). 

Dr. Sanderson has published more than 100 articles (including 7 books), primarily in the areas of anxiety, depression, personality disorders, evidence-based treatments, and cognitive behavior therapy. During the past decade he has been been interested in applying an evolutionary framework to human nature and clinical psychology.