If it sounds like something your grandmother would agree with

The psychology study is more likely to be reproducible--be right. "Most intriguingly, they found that papers which received more media attention were less likely to replicate. News outlets tend to favor counterintuitive and eye-catching findings." In other words, probably wrong.

The best field for successful replication was personality studies, at about 50:50, while social psychology or behavioral studies were about twice as likely to be wrong (irreproducible) as right.

I don't recall who coined the "grandmother test" (it sounds like something AVI would say), but it goes like this: If she'd say "I could have told you that!" the study is probably right, and if not, be very skeptical.