This study investigated the interactive effects of friend deviance and reward dominance on the development of externalizing behavior of adolescents in the Child Development Project. Reward dominance was assessed at age 16 by performance on a computer-presented card-playing game in which participants had the choice of either continuing or discontinuing the game as the likelihood of reward decreased and the likelihood of punishment increased. At ages 14 and 16, friend deviance and externalizing behavior were assessed through self-report. As expected, based on motivational balance and response modulation theories, path analysis revealed that age 14 friend deviance predicted age 16 externalizing behavior controlling for age 14 externalizing behavior. Reward dominance was a significant moderator of the relationship between friend deviance and externalizing behavior. The contributions of deviant friends to the development of externalizing behavior were enhanced by adolescents' reward dominance.
KeywordsExternalizing; Adolescence; Peers; Behavior problems; Adjustment; Friendship Advances in the understanding of the origins of aggressive behavior and delinquency are of societal importance. One advance involves improved understanding of the etiological role of deviant peers (Dishion, McCord, & Poulin, 1999;Dishion. Spracklen, Andrews, & Patterson, 1996). Another advance involves improved understanding of the role of individual dispositions in impulsivity (Olson, Schilling, & Bates, 1999). Increasingly, theory and research have advanced by considering possible interactions between individual dispositions and environmental factors (Bates, Pettit, Dodge, & Ridge, 1998;Lynam et al., 2000;O'Connor & Dvorak, 2001;Pettit, Bates, Dodge, & Meece, 1999;Prinzie et al., 2003;Wills, Sandy, & Yaeger, 2002).From an interactional perspective, externalizing behavior problems develop in a system of mutually dependent influences rather than functionally isolated ones (Hinshaw, 2002). AnCorrespondence to: Jackson A. Goodnight. NIH-PA Author Manuscript NIH-PA Author Manuscript NIH-PA Author Manuscript individual disposition can serve as a protective, neutral, or risk factor, depending on its relations with the biological, dispositional, and social-contextual factors with which it coexists. Wachs (2000) has extensively argued the centrality of the concept of functional interdependence between individual and environment Neither influence in isolation can sufficiently explain developmental process.
NIH Public AccessPrevious research has shown that both individual differences in reward dominance and deviant friendships, considered separately, are related to adolescents' externalizing behavior. The current study, however, may be the first to ask whether reward dominance moderates the developmental link between deviant friend groups and externalizing behavior.
Reward dominanceDisinhibition is a heterogeneous concept with important links to many forms of psychopathology. The concept has both personality/temperament and cognitive/information...