- American Psychological Association (Fellow: Division 7, Developmental Psychology
- Fellow: Division 1, General Psychology: Program Co-Chair for 2003, 2008)
- American Psychological Society
- American Association for the Advancement of Science
- International Society for Human Ethology
- Membership Chair (1992 - 1998)
- International Society for Twin Studies
- Behavior Genetics Association
- Professional and Public Affairs Committee (1989 - 1990)
- Professional Training Committee (1993 - 1996, Chair 1996)
- Human Behavior and Evolution Society
- Western Psychological Association
- Society for Evolutionary Analysis in Law