Line Plot from Scientific Research

A, C, and E contribution to educational attainment under different shared environment correlation assumptions. Additive genetic, shared environmental, and non-shared environmental effects on educational attainment across assumptions of first cousin shared environment correlation. X axis represents the degree of assumed first cousin shared environment correlations. Sibling shared environment correlation was assumed to be 1. Intervals between assumptions are 0.05, and ribbons represent 95% confidence intervals. See Fig. 6 for sample sizes.

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