Week 3 RQ4 Compliance and experimental protocols; intent to treat Non-compliance. a. ITT estimate is 639 - 380 (259 excess deaths per 100000 from no Vitamin A) or reverse it b. proportion in treatment complying is .8. Control group compliance was perfect (as stated) c. IV estimate is ITT/.8, which has the interpretation of CACE, complier average causal effect, 324 deaths per 100000