Indeed, the book The Quick Fix goes over exactly this point. For example, did you know that the Superman pose had no scientific evidence whatsoever? The researcher simply pushed for it because it made her feel good. The grit study by Angela Duckworth is similarly faulty, the cadet training camp she went to had a pass rate of over 90% so the ones who didn't pass weren't in a statistically significant group to show whether their grittiness actually meant anything to them failing or passing.