Table 2 provides the means and standard deviations from the two outcome variables from the BASC by intervention condition at each of the four time points. Individuals with the A/A genotype did not differ from carriers of the G allele on teacher-rated externalizing behavior at baseline, γ = 2.4, SE = 2.7, t(138) = 0.9, p = .37, or in growth rates of teacher-rated externalizing behavior, γ = −4.2, SE = 3.1, t(138) = −1.4, p = .18. A significant interaction was observed between genotype and condition on teacher-rated externalizing behavior, γ = 7.8, SE = 4.0, t(138) = 2.0, p = .05.
