Different pathways to threat emerged across genotypes. DRD4 7− adolescents were more affected by interparental conflict, whereas 7+ adolescents were affected by positivity. This difference is evidenced by the association between perceived interparental conflict and threat appraisals among 7− adolescents (β = .27; bootstrapped parameters: b = .36, 95% CI [.16, .56]) that was absent among 7+ (β = .05; b = .06, 95% CI [−.20, .32]). These paths differed significantly across genotypes, Δχ2(1) = 3.69, p = .05. Furthermore, no association was found between perceptions of interparental positivity and threat for 7− adolescents (β = .08; b = .13, 95% CI [−.09, .35]); this relation was present among 7+ adolescents (β = −.22; b = −.41, 95% CI [−.76, −.07]). These paths also differed significantly between genotypes, Δχ2(1) = 6.78, p < .01. Last, children of either genotype demonstrated greater internalizing problems in eighth grade when threat was higher in the seventh (β = .28 and β = .30, respectively).
