As shown in Table 8, moderation could be dropped on all three of the cross paths. Therefore the extended univariate model was used to further test moderation. Table 8 also shows moderation could be retained on the a and c paths and dropped on the e path. At high levels of stressful life events the shared environmental influences were greatest whereas at low levels of stressful life events the shared environmental influences were attenuated. The reverse is true for the genetic influences; genetic influences were greatest at low levels of stressful life events and smallest at high levels of stressful life events (See Supplemental Figure).
