Adelle Forth

Distinguished Research Professor

• Ph.D.
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Biography

Adelle is a Distinguished Research Professor in the Department of Psychology at Carleton University. After 34 dedicated years of research and teaching at Carleton, Adelle retired in 2025.

She is the senior author of the Hare Psychopathy Checklist: Youth Version (Forth, Kosson, & Hare, 2003) and a co-author of the Structured Assessment of Violence Risk in Youth (Borum, Bartel, & Forth, 2003), a risk scale for predicting adolescent violence. She has also served as a consultant to the Federal Bureau of Investigations, Royal Canadian Mounted Police, the National Parole Board, Her Majesty’s Prison Service, the Pennsylvania Sex Offender Board, and has testified in various court proceedings on the construct of psychopathy.

Research Interests

Adelle’s research centers on the assessment and correlates of psychopathy in different populations, the emotional and cognitive processes that underlie psychopathy, and violence risk assessment. Her most recent research has focused on the impact of psychopathy. She has extensive experience training a wide variety of professionals on the administration, scoring, and use of psychopathy measures throughout North America, Europe, and Asia.