Research Reasons for Avoiding All Caps

cfelton1
Community Novice

I have a faculty member who puts all Assignment, Discussion, and Content Page titles in all caps. In terms of netiquette, this is discouraged. I find it personally distracting and more difficult to read (maybe trying to focus on too much at one time??), but I cannot find any adequately cited resources that provide convincing arguments regarding best practice. Can anyone help me out? 

Thanks!!