After a thorough analysis of Jason Richwine’s Ph.D. dissertation, “IQ and Immigration,” Dr. Elizabeth Chin writes him the letter that his Harvard Professors should have written–BUT DIDN’T.  Amongst her many astute and incisive critiques is the fact that Richwine uses “native whites” as a control group to show that Hispanic immigrants have lower IQs.  Here’s a P.S. to Dr. Chin’s letter… ” And Jason, what’s your IQ…and what would your control be if we were to study you, for example.  Just sayin’“