There was no main effect of migration on behavior problems in either males (χ2Δ = 0.92, 1 df, p = 0.34) or females (χ2Δ = 0.27, 1 df, p = 0.61). In males, there were no moderation effects (moderation of ACE dropped: χ2Δ = 2.08, 3 df, p = 0.56). In females, dropping the moderating effect of migration was significant (moderation of ACE dropped: χ2Δ = 37.19, 3 df, p < 0.01). Dropping the moderation of the individual variance components indicated that this effect was due to moderation of the E component (moderation of A dropped: χ2Δ = 0.20, 1 df, p = 0.66; moderation of C dropped: χ2Δ = 1.14, 1 df, p = 0.29; moderation of E dropped: χ2Δ = 33.71, 1 df, p = <0.01). As the level of migration increased, the degree of unique environmental influence on female behavior problems increased. Unique environmental influences accounted for about 3% of the variance in female behavior problems in neighborhoods with the lowest rates of migration and around 22% of the variance in neighborhoods with the highest rates of migration.
