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Submitted by Anonymous on
The problem with RCT is that the "control group" has to remain as such during the study period, which poses some ethical dilemma whether one should keep development support away for this group. Also, politically, the government may not be in a position to keep development support for much long, and may in fact provide another similar support (say instead of milk, a calcium-fortified orange juice). So, what happens in the latter case?