Answer:
1. the effects of punishment.
Step-by-step explanation:
Stanley Milgram (1933 - 1984) was a graduate American psychologist at Yale University who conducted the Little Worlds Experience (the source of the concept of the six degrees of separation) and the Milgram Experience on obedience to authority.
Milgram was interested in researching how far people would go in obeying an instruction if it involved harming another person.
The study aimed to observe how easily ordinary people could be influenced into committing atrocities.