This pattern of effects changed over time, indicated by the negative three-way interaction. Centered at the illustrative age of 23, HED was similar across all conditions. Unmarried individuals with lower PRS were predicted to engage in HED 8.06 days per year compared to 6.96 days per year for those with higher PRS. Married individuals with lower PRS were predicted to engage in HED 5.99 days per year compared to 7.05 days per year for those with higher PRS. With age centered at 25, HED was similar among unmarried participants with high and low PRS. Unmarried individuals with higher PRS were predicted to engage in HED 5.72 days per year compared to 5.02 days per year for those with lower PRS. Among married participants, however, higher PRS was associated with lower HED. Individuals with higher PRS were predicted to engage in HED 1.86 days per year compared with 11.14 days per year for those with lower PRS. Thus, the nature of marriage’s moderating effect on the association between PRS and HED changed between ages 21 and 25.
