Yup, I've heard of several cases in which that happened, but I don't know the specifics or whether the people rejected performed poorly in the programs. Also I remember hearing that internationals had a harder time, unsurprisingly. From a post roughly 2 years ago:
Originally Posted by Staticsoliloguy
Matt Mcgann on MITadcom told me that only 75% of the RSI participants who applied got in. As much as we would liek to think that MIT is our safety school, none of us can say it for sure.
By the way, if you're interested, the thread was long and largely pointless but here's the link: http://www.collegeconfidential.com/c...ow.cgi?8/85543