Cross-trait polygenic score predictive validity, at least sometimes. More studies like this! https://www.researchgate.net/publication/281241266_Phenome-wide_analysis_of_genome-wide_polygenic_scores …pic.twitter.com/5NyPqn2RSS
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@KirkegaardEmil @piffer_davide Bad news for Barban IV regression - look at how pleiotropic IQ/college PSes are! They predicted everything.
@gwern @piffer_davide Another idea is to correlate the SNP beta vectors. This requires that we actually have the entire SNP lists.