Level of Service Inventory–Revised: Screening Version

Don Andrews, Ph.D.
James Bonta, Ph.D.

Technical Information

Reliability and Validity
The LSI-R:SV has sound scientific validity and reliability. The LSI-R:SV reliability studies include evaluation of Internal consistency as measured by Chronbach's alpha. The validity of LSI-R:SV has been tested for:

  • Face validity
  • Construct/Convergent validity
  • Predictive validity
  • Relative validity
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About the Authors

Dr. D. A. Andrews
Dr. D. A. Andrews is a professor of psychology and a member of the Institute of Criminology and Criminal Justice at Carleton University. He received his Ph.D. from Queen's University and is a member of the College of Psychologists of Ontario. His research interests are in the area of criminal justice, corrections, and other human service areas. He also has an interest in the social psychology of criminal knowledge. Dr. Andrews is the author of numerous books, monographs, technical reports, and articles. He is co-author of Assessing the Youthful Offender: Issues and Techniques and co-author of The Psychology of Criminal Conduct and Level of Service Inventory–Revised with James Bonta.

Dr. James L. Bonta
Dr. Bonta received his doctorate degree in Clinical Psychology from the University of Ottawa in 1979. Prior to graduating he worked with conduct-disordered children and their families, provided assessments of youth for juvenile courts, and acted as a consultant at a training school for youth. Upon graduating, Dr. Bonta became a psychologist at the Ottawa-Carleton Detention Centre, a maximum security remand center for adults and young offenders, and later became Chief Psychologist at the institution. During his 14 years at the detention centre he established the only full-time psychology department in a jail setting in Canada.

Dr. Bonta is currently the director of correction research for Public Safety and Emergency Preparedness Canada. He is also a member of the Editorial Advisory Boards for the Canadian Journal of Criminology and Criminal Justice and Behavior and a fellow of the Canadian Psychological Association.

He has had many publications in the areas of risk assessment and offender rehabilitation, such as The Psychology of Criminal Conduct co-authored with D. A. Andrews and The Level of Service Inventory–Revised an offender risk-need classification instrument that has been translated into five languages and is used by correctional systems in many countries.
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Don Andrews, Ph.D. &
James Bonta, Ph.D.

Age Range 16 years and older

Administration Time 10–15 minutes

Administration Type Structured Interview

Qualification Level B