I'm sorry, but I really despise the attitude that any study of human behavior is "not really science," a belief I typically see propounded by men in the "hard sciences" (a telling adjective, that) who don't trust anything they can't reduce to numbers. IOW, it's a very gendered distinction.

Do you propose that we (humanity in general) not study it at all, since it's unethical and perhaps not even possible to create the sort of controls you demand?