Acknowledgements ix About the Editors xi Notes on Contributors xiii Foreword xxiii Part I Introduction 1 1 What Works for Offenders with Intellectual and Developmental Disabilities: Systems for Evaluating Evidence and Book Overview 3Leam A. Craig, William R. Lindsay, and Dorothy Griffiths 2 What Works: Ethical Considerations When Treating Offenders with Intellectual and Developmental Disabilities 17Dorothy Griffiths 3 Protecting the Rights of People with Intellectual Disabilities in Correctional Settings 41Frank Lambrick, Astrid Birgden, Chelsea Troutman, and Danielle McLeod Part II Phenotypes and Genotypes and Offending Behaviour 67 4 Behavioural and Cognitive Phenotypes in Genetic Disorders Associated with Offending 69Lauren J. Rice, Stewart L. Einfeld, and Patricia Howlin Part III Validated Assessments 97 5 Diagnosis of Personality Disorder in Offenders with Intellectual and Developmental Disabilities 99Nigel Beail 6 Assessment of Anger and Aggression 113Paul Willner, Andrew Jahoda, and Ken MacMahon 7 Psychological Assessment Procedures for Sex Offenders with Intellectual and Developmental Disabilities 133Lesley R. Steptoe and Amanda M. Michie 8 Assessment for Social Problem‐Solving, Social Information Processing, and Criminal Thinking 167Peter E. Langdon 9 Assessment of Alcohol Use Disorder and Alcohol‐Related Offending Behaviour 181Joanne E.L. VanDerNagel, Neomi van Duijvenbode, and Robert Didden 10 Assessing People with Intellectual Disabilities Who Have Engaged in Fire Setting 193Samuel J. Tromans, Verity Chester, and Regi T. Alexander 11 Biopsychosocial Assessment Approach for Offenders with Intellectual Disabilities 219Deborah Richards, Tyler Oswald, and J. Paul Fedoroff 12 Using a Multicomponent Model in the Assessment of Persons with Intellectual Disabilities and Problems in Sexual Behaviour 239Robin J. Wilson, Stephanie Ioannou, and Kendra Thomson Part IV Treatment 261 13 Supporting People with Intellectual and Developmental Disabilities Leaving Prison 263Kathy Ellem, Michelle Denton, and Danielle Davidson 14 Prison‐based Programmes for People with Intellectual and Developmental Disabilities 283Phillip Snoyman, Berindah Aicken, and Jayson Ware 15 Treatment of Anger and Violence in Individuals with Intellectual Disability 297Robert Didden, Henk Nijman, Monique Delforterie, and Marije Keulen‐De Vos 16 Treatment of Inappropriate Sexual Behaviour by People with Intellectual Developmental Disabilities 311Leam A. Craig 17 Treatment for Social Problem Solving and Criminal Thinking 327Susan Hayes 18 Treating Substance Misuses Amongst Offenders with Intellectual and Developmental Disabilities 341Danielle Newton and Jane McGillivray 19 Treatment for Emotional Difficulties Related to Offending for People with an Intellectual Disability 357Paul Oxnam and Emma Gardner 20 Treatment Outcomes for People with Autistic Spectrum Disorder in Forensic Settings 373Peter Sturmey 21 Pharmacological Approaches for Offenders with Intellectual and Developmental Disabilities 389Daniel Turner and Peer Briken Part V Conclusions 405 22 Future Directions for What Works for Offenders with Intellectual and Developmental Disabilities 407Dorothy Griffiths and Leam A. Craig Index 421

The Wiley Handbook on What Works for Offenders with Intellectual and Developmental Disabilities Brings together the growing amount of evidence on the assessment and treatment of offenders with intellectual and developmental disabilities. Written by a team of international experts, this comprehensive and informative book provides a contemporary picture of evidence-based practice for offenders with intellectual and developmental disabilities. By adopting a scientist-practitioner position directed at an academic level with practitioner guidelines, it provides a valuable reference source for professionals from allied disciplines who are using or seeking to apply research for this client group. The Wiley Handbook on What Works for Offenders with Intellectual and Developmental Disabilities: An Evidence-Based Approach to Theory, Assessment, and Treatment is divided into five sections: Introduction, Phenotypes & Genotypes and Offending Behavior, Validated Assessments, Treatment, and Conclusions. The Introduction offers an overview of the entire book and is followed by a second overview covering the ethics of evidence-based practice. After that come chapters on protecting the rights of people with intellectual disabilities in correctional settings, and behavioral and cognitive phenotypes in genetic disorders associated with offending. The third part of the book studies the assessment of individuals with anger and violence issues, inappropriate sexual behavior, alcohol abuse, and emotional difficulties. Next comes a section that looks at how offenders can be treated. The final section discusses future directions and requirements for offenders with intellectual and developmental disabilities. Provides an overview of the ethical challenges and issues faced by those who work with intellectually and developmentally disabled offenders.Focuses on proof of treatment effectiveness and validation of assessment methods to direct readers toward "What Works".Features contributions from authors across the entire English-speaking world including the UK, USA, Canada, Australia, and New Zealand. The Wiley Handbook on What Works for Offenders with Intellectual and Developmental Disabilities: An Evidence Based Approach to Theory, Assessment, and Treatment will appeal to all who work in the field of offenders with intellectual and developmental disabilities, including nursing staff, social workers and probation officers, medical and psychology staff, and more.