2015. “Different Slopes for Different Folks: Genetic Influences on Growth in Delinquent Peer Association and Delinquency during Adolescence” Journal of Youth and Adolescence 44 (July):1413-1427.
2015 (print version forthcoming). “Internalizing Symptoms, Peer Substance Use, and Substance Use Initiation” Journal of Research on Adolescence. Early View doi: 10.1111/jora.12215.
2014. “A Quantitative Genetic Analysis of the Associations among Language Skills, Peer Interactions, and Behavioral Problems in Childhood: Results from a Sample of Twins” Merrill-Palmer Quarterly 60 (Spring):142-167.
2012. “Do Peers Matter in the Development of Self-Control? Evidence from a Longitudinal Multi-Site Sample of Youth” Journal of Youth and Adolescence.
2012. “Hanging Out With Which Friends? Determinants of Frequency of Informal Socializing in Adolescent Friendships” Journal of Research on Adolescence.
2011. “If You Don’t Drink and You Don’t Smoke, What do You do? A Test of Moffitt’s Hypothesis of Delinquency Abstention” Criminal Justice and Behavior.
2010. “Resiliency to Adolescent Victimization: The Role of Genetic Factors” Journal of Interpersonal Violence.
2010. “Interracial Contact and Fear of Crime” Journal of Criminal Justice.
2009. “The Stability of Delinquent Peer Associations: A Biosocial Test of Warr’s Sticky Friends Hypothesis.” Crime & Delinquency.
2009. “Chronic Offenders: A Life-Course Analysis of Marijuana Users” Youth & Society.
2009. “Gene-Environment Interplay and Delinquent Involvement: Evidence of Direct, Indirect, and Interactive Effects” Journal of Adolescent Research.
2009. “Biosocial Influences on Fraudulent Behaviors” Journal of Genetic Psychology.
2009. “Evidence of Genetic and Environmental Effects on the Development of Low Self-Control” Criminal Justice and Behavior.
2009. “Genetic and Environmental Influences on Levels of Self-Control and Delinquent Peer Affiliation” Criminal Justice and Behavior.
2009. “DAT1 and 5HTT are Associated with Pathological Criminal Behavior in a Nationally Representative Sample of Youth” Criminal Justice Behavior.