All Stories

  1. Public sex offender registries are unlikely to reduce sexual harm

    Article • Psychology Public Policy and Law, December 2025, American Psychological Association (APA)

    R Karl Hanson

  2. Pedophilia is a taxon among 706 adult males assessed at a civil commitment center.

    Article • Journal of Psychopathology and Clinical Science, February 2022, American Psychological Association (APA)

    Andrew Brankley, Raymond Knight, R Karl Hanson

  3. Field validity of Static-99R and STABLE-2007 with 4,433 men serving sentences for sexual offences in British Columbia: New findings and meta-analysis.

    Article • Psychological Assessment, July 2021, American Psychological Association (APA)

    Maaike Helmus, Dr Daniel Murrie, R Karl Hanson

  4. Updated 5-year and new 10-year sexual recidivism rate norms for Static-99R with routine/complete samples.

    Article • Law and Human Behavior, February 2021, American Psychological Association (APA)

    Seung Lee, R Karl Hanson

  5. Monitoring changes in risk of reoffending: A prospective study of 632 men on community supervision.

    Article • Journal of Consulting and Clinical Psychology, October 2020, American Psychological Association (APA)

    R Karl Hanson

  6. Reductions in risk based on time offense-free in the community: Once a sexual offender, not always a sexual offender.

    Article • Psychology Public Policy and Law, February 2018, American Psychological Association (APA)

    R Karl Hanson