Lay Estimates of Heritability

Scatterplot and associated regression line of mean lay estimates of genetic influence for 20 human traits (excepting colorblindness; converted from 1 to 5 Likert scale to 0--1 variance scale) in Mechanical Turk sample of 1041 participants, along with published estimates of heritability for these traits from meta-analyses and large-scale twin studies. The correspondence between lay estimates and published estimates is r = .77 (r2 = .59). Points are color-coded to their group membership according to the results of a four-factor solution of all responses.