Mediational pathways from social network composition (i.e., proportion family) to episodic memory through contact frequency. Standardized estimates are reported. Nonsignificant paths are depicted with dotted gray lines. For simplicity, covariate effects and autoregressive paths (T1 social engagement with family/friends, and T1 memory) were estimated but are not shown. * = p < .05, ** = p < .01, *** = p < .001.