Figure 3.

DF group heritabilities of the Childhood Autism Spectrum Test scores at age 8. The x‐axis denotes the cut off points applied to generate the groups for the DF analyses: the proportions represent the cumulative probability at the right‐hand side of the distribution, using the z‐values below as cut off points. The horizontal line drawn at and above the upper 95% CI of the group heritabilities at the higher end of the distribution (5–1%), serves as a visual guide to illustrate the groups which the high end estimates are not overlapping with