2014. “Toward a Bioecological Model of School Engagement: A Biometric Analysis Examining Genetic and Environmental Factors” Social Work Research 38 (September):164-176.
2012. “Exploring the Association Between IQ and Differential Life Outcomes: Results from a Longitudinal Sample of Monozygotic Twins” Sociedade Brasileira de Psicologia.
2012. “Young Offenders and an Effective Justice System Response: What Happens, What Should Happen, and What We Need to Know” From Juvenile Delinquency to Adult Crime: Criminal Careers, Justice Policy, and Prevention.
2010. “Resiliency to Adolescent Victimization: The Role of Genetic Factors” Journal of Interpersonal Violence.
2009. “The Stability of Delinquent Peer Associations: A Biosocial Test of Warr’s Sticky Friends Hypothesis.” Crime & Delinquency.
2009. “The Biosocial Underpinnings to Adolescent Victimization: Results from a Longitudinal Sample of Twins” Youth Violence and Juvenile Justice.
2009. “Gene-Environment Interplay and Delinquent Involvement: Evidence of Direct, Indirect, and Interactive Effects” Journal of Adolescent Research.
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. “All in the Family: Gene X Environment Interaction Between DRD2 and Criminal Father is Associated with Five Antisocial Phenotypes” Criminal Justice and Behavior.
2009. “Natural Born Killers: The Genetic Origins of Extreme Violence” Aggression and Violent Behavior.
2008. “Delinquent Peer Group Formation: Evidence of a Gene X Environment Correlation” The Journal of Genetic Psychology: Research and Theory on Human Development.
2008. “Desistance from Delinquency: The Marriage Effect Revisited and Extended” Social Science Research.