In the AA sample, parental EXT PGS was correlated with their own externalizing behavior, but was not correlated with adolescents’ externalizing behavior. Adolescent EXT PGS was not correlated with any parenting measure. Parental EXT PGS was correlated with lower parent-child closeness, but not other aspects of parenting. Adolescent externalizing behavior was correlated with lower parental involvement, lower parent-child closeness, and lower parental knowledge.