Another point I'm wondering about is what reasons people could have to assume the study couldn't be helpful. What are the benefits or possible harms if no clear genetic associations were found? Or if the findings showed genetic associations with mental illnesses, how could such findings be reasonably interpreted? Edit: In addition, I have no clue about "behavioral genetics", only realized there was a debate on this a while ago and assume this isn't relevant for this study. But could this be an issue for people having reservationsl about a GWAS?