His various areas of research examine the process of offender change in criminal justice and corrections environments (e.g., prisons, probation offices, mandated rehabilitation). Drawing on knowledge and theories from a number of areas within psychology, his research attempts to understand how offenders change to become crime-free, and how the correctional system might impact prosocial change among offenders. His research aims to enhance and advance current practice in corrections, for example, by refining risk assessment to take dynamic change into account, advancing understanding of rehabilitation by expanding which features are examined in offender programming, and developing more precise measurement of offender cognitions about desistance from crime. Sample Publications