This was a reference off of one of BPL's articles, and I found it interesting:

http://onlinelibrary.wiley.com/doi/10.2310/7060.2004.13621/pdf

Only 7 pages. The statistics are hard to understand (it's been too long since I used stats) but the Abstract, Discussion, and Conclusions sections were interesting to read.

Lori, thanks for leading me to digress over to BPL this morning - wouldn't have found this otherwise.

Sincerely

Steadman