Rolf Loeber, PhD
Rolf has been with each of the studies since their inception. He first studied in Amsterdam in the Netherlands, and obtained his Ph.D. in Psychology at Queen's University in Kingston, Ontario, Canada. He has published 4 books and over 250 scientific papers. Rolf's interests are in how and why young people develop serious problems in their lives, including serious delinquency, mental problems, and drug problems. His challenges are to better understand and document how the behaviors of young people change with development, how risk and protective factors may emerge and persist during that development, and why this information is relevant for prevention and intervention.