John' s University and program director of the school psychology programs. He earned his doctorate in clinical and school psychology from Hofstra University. Dr. Terjesen has studied, published, and presented at numerous national and international conferences on rational emotive and cognitive behavior therapy as well as the assessment and treatment of attention-deficit/hyperactivity disorder and cultural issues. Dr. Terjesen has trained many professionals internationally in the use of cognitive–behavioral practices with children and families. He has served as president of Division 52 of the American Psychological Association, of which he is also a fellow; president of the School Division of the New York State Psychological Association; and president of the Trainers of School Psychologists.