\label{preliminary-results}
Table 2reports the results from a series of OLS regression models where we study the association between the proportion aged 25+ with college degree or more at the census block group level and educational attainment at Wave IV. Model 1 reports the results of a regression model without interaction term. Model 2 adds parental education in the estimating equation and Model 3 includes both parental education and interaction between PGS and contextual variables. Results indicate that the polygenic score is positively associated with education, with 1SD associated with 0.4 years of education (Model 1). Educational level at the neighborhood level is also positively associated with individual educational attainment. An increase of 10% in the proportion of adults with college education is associated with 0.5 years of education at the individual level (Model 1). To control for selection problems, we include parental education as covariate in Model 2, bearing in mind that the correlation between respondents and parental PGS is on average 0.5 because biological parents share on average 50% of genetic variation. Controlling for parental education reduces substantially the coefficient of education at the block level, but has a limited effect on PGS. Lastly, we included the interaction between PGS and proportion of college educated adults. Results indicate a positive significant interaction between the two variables, while the main effect of PGS reduces becomes not statistically different from zero.