Author: Nathan H. Azrin

BRAD DONOHUE is a licensed clinical psychologist and Professor in the Department of Psychology at the University of Nevada, Las Vegas. He is the director of the Achievement Center, which is focused on the development of evidence-based protocols for use in disadvantaged populations. DANIEL N. ALLEN is a licensed clinical psychologist and Professor of Psychology at the University of Nevada, Las Vegas. His research focuses on the neuropsychological correlates of mental illness, including substance use disorders and evidence-based interventions for these disorders.