- Reviewer: Chapter in introductory psychology text, Worth Publishing, Inc. (1987)
- Reviewer: Introductory text in behavioral genetics, Dorsey Press. (1987)
- Reviewer: SRCD Meeting Abstracts (Family and Kinship). (1988)
- Reviewer of APS Meeting Abstracts (1990)
- Consultant: Time-Life Books (1990)
- Reviewer of APS Meeting Abstracts (1991)
- Child Development (1990a, 1990b; 1991; 1992; 1993)
- NIMH Proposal, Guest Reviewer (1992)
- NIH Proposal, Guest Reviewer (1992)
- Reviewer of APS Meeting Abstracts (1992)
- Consultant: Time-Life Books (1993)
- Reviewer: APS Meeting Abstracts (1993)
- Journal of Personality and Social Psychology (1993; 1995a, 1995b, 1996)
- NADAMHA, Reviewer (1994)
- Reviewer: APS Meeting Abstracts (1994)
- Psychology, Public Policy, and Law (1994; new APA journal, special issue)
- American Psychologist (1995)
- Politics and the Life Sciences (1995)
- Developmental Psychology (1996)
- NSF Proposal, Reviewer (1997)
- Behavior Genetics, Reviewer (1998a, 1998b, 1999)
- Evolution and Human Behavior, Reviewer (1998)
- Twin Research, Reviewer (1998)
- ERIC Digest, Reviewer (1998)
- Westview Press, Reviewer (1998)
- Psychological Science, Reviewer (1998)
- NSF Proposal, Reviewer (1999)
- Academic Press: Textbook, Reviewer (1999)
- Evolution and Human Behavior, Reviewer (1999)
- Journal of Educational Psychology, Reviewer (1999)
- Human Biology, Reviewer (1999)
- Journal of Research in Personality (1999)
- British Journal of Sociology (1999)
- Little, Brown & Co., Book review by author request (1999)
- Behavior Genetics, Reviewer (1999)
- HarperCollins, Reviewer (2000)
- Harvard University Press (2000)
- Developmental Psychology (2000)
- Sinauer Associates: Book Chapter (2000)
- Behavior Genetics, Reviewer (2001, 2006)
- Journal of Personality and Social Psychology (2001)
- Allyn & Bacon: Citation (with students) in Course Textbook (2002)
- Journal of Personality and Social Psychology (2002)
- Book Proposal, Lawrence Erlbaum (2005)
- Psychological Science (2006)
- European Journal of Personality (2006, 2008, 2011)
- Journal of Personality (2007, 2009)
- Social Sciences and Humanities Research Council of Canada (2007, 2008)
- Research Proposal: British Academy (2007)
- International Journal of Behavioral Development (2008)
- Emotion (2008)
- Outside Reviewer: Promotion Decision, City University, Hong Kong (2008, 2010)
- Twin Research and Human Genetics (2008 [3 reviews], 2009 [4 reviews], 2010 [2 reviews], 2013 [1 review])
- American Journal of Orthopsychiatry (2008)
- Personality and Individual Differences (2008, 2009, 2012[2], 2013)
- American Journal of Orthopsychiatry (2008)
- Journal of Early Adolescence (2009)
- Evolutionary Psychology (2011)
- Social Sciences and Humanities Research Council of Canada (2011)
- Oxford University Press: Online Bibliographies (2012)