No diversity research?

So I have this assignment to find research in public relations in one of my classes...and I wanted to look at diversity and public relations.

I have searched for billions of hours [well not billions, but pretty dang long] for this specific subject in research, and I have to be frank, the search is not going very well.

I have found 2-3 full research articles on this topic which is very slim in my opinion. Diversity in communications is a subject that PRSA has pushing for a couple of years now, and the industry still does not have relevant research on the topic.

I am student and this is my first time truly looking at research, therefore I might be off in my comment about 'slim-findings' on the subject of diversity and public relations.

Hmmm, it's a bit disheartening for me to see this. The latest study I found was conducted in 2000 by a professor at the University of Florida. She even stated the lack of studies conducted on this topic--and that was 8 years ago.

If anyone has any suggestions on where I can find some studies on the subject of public relations and diversity...please contact me.

I am in need of some reassurance that diversity matters and that research is being conducted in the field.