Question

In milgram's study on obedience, informing the participants that it was experiment on learning and memory is an example of

Answer 1

I believe the answer is: Deception

in research terms, Deception is an act to falsely misdirect the information given to the subjects of the research.
This form of action is considered as a direct violation of an ethical standard that could be punished through legal courses depending on the damage that created because of the research.