> But I found that a higher level of formality improved my students' learning. My larger classes ran more smoothly.
This is the crux of the article, and he provides no proof to back it up.
The article says that this is an "experiment", but how did the professor log his activities? How did he measure the change in his student's perception? How did he isolate the variables of his own bias vs. the impact of new clothes vs. the impact of formal clothes?
My personal opinion is that fashion is a gigantic waste of time. In any and all venues. Clothing should be first and foremost for utility. Part of that utility is creating a personal brand, which the author has stumbled upon here in his "experiment".
While I'm not a fan, Steve Jobs had a great outlook on this, and is well known by his jeans-and-turtleneck look. This is an amazing insight into clothes in my opinion: Jobs found an outfit that worked, and then simplified everything in his life related to clothing. Image how easy laundry, the decision on what to wear for the day, moving, and ownership of clothes would be if you had a single, standard type of clothing to wear? Imagine how much easier it is to standardize social interactions with other people around you? You'll never have to worry about wearing 'nice' clothes again, because ALL your clothes are exactly the same.