As shown in Figure 2 and Table 2, parental education polygenic score was associated with higher parental educational attainment and higher parental income, which in turn was associated with higher offspring educational attainment, above and beyond the effect of offspring education polygenic score. The indirect path from parental education polygenic score to offspring educational attainment via parental educational attainment was statistically significant for both fathers (B = .196, 95% CI = [.156, .246]), SE = .028, β = .094) and mothers (B = .143, 95% CI = [.106, .185], SE = .023, β = .068). Similarly, the indirect path from parental education polygenic score to offspring educational attainment via household income was also statistically significant for both fathers (B =.086, 95% CI = [.062, .115], SE = .016, β = .041) and mothers (B = .055, 95% CI = [.034, .079], SE = .014, β = .026). For fathers, paternal educational attainment explained 49.6% of the variance in the association between paternal education polygenic score and offspring educational attainment, and income explained 21.8% of the variance, after controlling for the
