O'Farrell, Timothy J.

Timothy J. O'Farrell, PhD, ABPP, is Professor of Psychology in the Department of Psychiatry at Harvard Medical School. He is also Director of the Families and Addiction Program and the Counseling for Alcoholics' Marriages (CALM) Project at the VA Boston Healthcare System.
William Fals-Stewart, PhD, is a clinical psychologist, a principal scientist at RTI International, and Director of the Addiction and Family Research Group.