[jlgreco]

When I was in Uni I had a similar experience. I never collected enough data to really show a conclusive relationship and obviously it was possible my writing improved around the same time that I switched.. but it was still something that I noticed.

One of my theories was that professors expected rushed papers to have poor or missing formatting, but my rushed papers wouldn't. The formatting was therefore sending a signal to the professor saying "He didn't write this in the morning, so give him the benefit of the doubt." I never considered that the typeface that I was using could have been involved.

[kjetijor]

In the case of (La)TeX I'd actually also be curious if i.e. the rules governing hyphenation/justification makes any difference as well, not just the typeface.

[tsahyt]

I'm pretty sure they do. Justified text looks more "professional" than ragged right one. The problem with it is, that it can create rivers without proper hyphenation. TeX is pretty good at this stuff and that's one reason why text set with TeX looks so good. I wish browsers would catch up on this.