Thanks; this appears to be the source for the Air Force research in the "Truth About Rape Culture" video (48:17). Unfortunately, Bruce Gross's information about polygraphs and "disproved" allegations is not supported by his citation to McDowell's "False Allegations" paper. In other words, your secondary source does not provide a correct primary source. Also, the Forensic Examiner is not peer-reviewed, and Bruce Gross did not respond to my e-mail.
So this information remains unsourced.