I just read an article that indicated psychology was the second most popular college major -- second only to business. It has been my experience that RT master's students coming from undergraduate degrees in psychology have been some of the best students. Being excellent RT grad students is probably due to (1) having to be bright or they wouldn't have gotten into their psych major and (2) the psych background provides a great foundation for RT.
Which leads me to the question: Why not recruit psychology departments for graduate students in RT? There are many more psych students than places for them in psychology graduate programs -- so there will be a lot of bright psych majors looking for alternatives for graduate study. Why not RT?