Heard this one on NHPR this morning. Recent research shows that well dressed men do better in business deals than slobs. The research had some "test" candidates, one dressed in a business suit and the dressed in a sweatsuit, negotiate a real estate deal. The guys in business suits got the better deal every time. They interviewed a software guy who said he felt better and wrote better code wearing a good shirt with a collar, rather than a grubby T-shirt. Highly objective a repeatable evidence that is.
They need to do research on this?
Fifty years ago, Air Force ROTC trained us officer cadets to look sharp, always wear a clean pressed uniform, keep our hair cut, and keep our shoes shined. The troops are more likely to listen to a sharply uniformed officer than to a slob. A principle of leadership it was called. For that matter, everybody knows that you always wear coat and tie on a job interview.
Sounds like those "researchers" were looking for something to blow their grant money on.