A new article by Polderman et al. in Nature Genetics, nicely summed up by Jeremy:
— Jeremy Freese (@jeremyfreese) May 25, 2015
is a meta-analysis of essentially every twin-based study of heritability of any trait between 1958 and 2012. The top-line coverage, encouraged by the authors’ press release, is:
One of the great tussles of science – whether our health is governed by nature or nurture – has been settled, and it is effectively a draw.
This is based on the fact that, across 17,804 traits in 28 “general trait domains,” the overall mean heritability was 49%. That prompted me to write:
— Andrew Perrin (@AndrewJPerrin) May 25, 2015
Read on for why I think that, what value there is in the below-the-fold part of the article, and why I think this kind of work is in desperate need of an injection of theory. Continue reading