Answer :
Final answer:
Philip Zimbardo was the lead investigator in the 1971 Stanford Prison Experiment.
Explanation:
Philip Zimbardo was the lead investigator in the 1971 experiment involving the transformation of the Stanford University Psychology Department basement into a prison facility where 24 healthy college students were assigned roles as prisoners or guards.
Learn more about Stanford Prison Experiment here:
https://brainly.com/question/29534348