Research Supplement?

http://talk.collegeconfidential.com/duke-university/1726091-sending-in-a-research-statement-to-duke.html#latest

Current CC topic. The answer apparently is yes, although Undergraduate Admissions’ instructions do not specifically allow this (and I’ve extensively searched). I’d suggest following the advice of those who have recently – and successfully – done so, delineated in the foregoing thread.