2016. “Taking Stock of the Relationship between Gang Membership and Offending: A Meta-Analysis” Criminal Justice and Behavior 43:365-397.
2015. “Guns, Gangs, and Genes: Evidence of an Underlying Genetic Influence on Gang Involvement and Carrying a Handgun” Youth Violence and Juvenile Justice 13 (July):228-242.
2010. “Estimating the Effect of Gang Membership on Nonviolent and Violent Delinquency: A Counterfactual Analysis” Aggressive Behavior.
2010. “Monoamine Oxidase A Genotype is Associated with Gang Membership and Weapon Use” Comprehensive Psychiatry.
2009. “Delinquent Gangs and Adolescent Victimization Revisited: A Propensity Score Matching Approach” Criminal Justice and Behavior.
1995. “Hispanic Perceptions of Youth Gangs: A Descriptive Exploration” Journal of Gang Research.