John R. Weisz

Harvard University

Professor of Psychology


Dr. Weisz is a Professor of Psychology at Harvard University. His research involves the development of interventions for youth mental health problems, as well as systematic reviews critiquing the science of youth mental health care.

Dr. John Weisz is a Professor of Psychology at Harvard University and runs the Laboratory for Youth Mental Health – or the “Weisz Lab” – at Harvard University.

Dr. Weisz has committed his scientific career to improving the lives of children and adolescents who have serious emotional and behavioral problems. Dr. Weisz’s research has largely been focused on studying youth mental health care in real-world contexts. His focus has largely been on the development and testing of interventions for youth mental health care. He is especially interested in integrating evidence-based practices with strategies for personalizing treatment to fit individual youth and family characteristics.

Dr. Weisz has conducted more than a decade of research on youth mental health treatment process and outcome in everyday clinic practices. During his time at UCLA, Dr. Weisz carried out randomized trials of cognitive behavioral therapy for youth depression and anxiety, identifying treatments that work and helping to improve mental health care for children. 

Dr. Weisz served for eight years as President and CEO of the Judge Baker Children’s Center, an affiliate of Harvard Medical School.

As a lauded researcher in the youth mental health sector, Dr. Weisz has numerous awards and publications, including Psychotherapy for Children and Adolescents: Evidence-based Treatments and Case Examples and Evidence-based Psychotherapies for Children and Adolescents.

Education and Training


Mississippi College, Psychology

MS + PhD

Yale University, Clinical and Developmental Psychology

University Affiliations

University of North Carolina at Chapel Hill, UCLA, Harvard

“By age 16, at least one in three youths will have experienced a disorder, with often-serious impact on family life, peer connections, school functioning, relationships, and employment outcomes. Effective interventions for young people are clearly needed. The innovative work of AIM for Mental Health is leading the way toward such interventions, empowering clinical research teams to advance our understanding of what children and adolescents need in order to realize their full potential.”

John R. WeiszHarvard University