R. Karl Hanson, PhD is an adjunct research professor at Carleton University, Ottawa, Canada and formerly a researcher with Public Safety Canada from 99 -2 7. His research concerns risk assessment and rehabilitation for individuals in the criminal justice and forensic mental health systems, with a particular focus on sexual offenders. He has a strong interest in the statistical methods used to quantify risk and to evaluate change over time. Follow rkarlhanson and visit carleton.ca/psychology.
Karl Hanson, one of the preeminent experts on criminal risk prediction, has produced an informative text that should be required reading for any professional involved in mental health assessment. Dr. Hanson skillfully presents complex concepts in a simple to read and understand text that will inform the future of psychological (and other mental health) assessment. A must-have on the bookshelf of practitioners and researchers alike. -- Robert D. Morgan, PhD, Dean, College of Health and Human Sciences, Southern Illinois University, Carbondale, IL, United States Karl Hanson—an international luminary in the field of psychological assessment—has written a cogent, meticulous, and comprehensive guide to the statistics used to predict human behavior. This lucidly written work will have an immense and long-lasting impact on the field. It needs to be within arm’s reach on the bookshelf of every clinical researcher and every evidence-based clinician. -- John Monahan, PhD, Shannon Distinguished Professor of Law, University of Virginia, Charlottesville, VA, United States Advances in the field of risk assessment have been facilitated by improvements in prediction statistics. Until now there has been no comprehensive guide for those in the field. As a research and practice leader, Hanson delivers a learned volume that is readily accessible. It teaches specific statistics along with the role of prediction statistics in forensic assessment. It is a must-read for forensic researchers and practitioners intending to put research into practice. -- Distinguished Professor James Ogloff, AM, Director, Centre for Forensic Behavioural Science, Swinburne University of Technology, and Executive Director, Psychological Services & Research, Forensicare, Victoria, Australia