Using a polygenic score in a family design to understand genetic influences on musicality.

Note that this trend was only borderline significant, with the confidence interval including 0.50.

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We found a borderline significant trend for potential confounding effects, such as assortative mating or residual population structure effects, with a PGS rhythm correlation of exactly 0.50 between dizygotic twin members being the lower limit of the confidence interval (r = 0.54, CI 0.50–0.58).

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