I took a look at the genetics paper, and while it's true that the "candidate gene" approach led to a lot of false results, it should be noted that that paper is

I took a look at the genetics paper, and while it's true that the "candidate gene" approach led to a lot of false results, it should be noted that that paper is from 8 years ago and methodologies in genetics have changed _completely_ since then. The same can't be said for psychology.