Figure 1.

Genetic variance (Var_g) of Social Communication Disorder Checklist (SCDC) scores during development. Var_g for SCDC scores across development as estimated using a univariate model (Supplemental Table S6) (N ≥ 4174) and the full Cholesky decomposition model (Table 1, model 1, and Supplemental Table S8) (N = 3295). Genetic factors A₃ and A₄ of the Cholesky decomposition model are not shown, as their estimated Var_g was negligible (< 0.01). All reported Var_g estimates are equivalent to SNP-h² estimates. Gray lines indicate 1 SE in total Var_g for each SCDC measure.