The two concepts in social psychology are aggression and Self-concept. I believe that aggression played a major role in the Stanford Prison Experiment because both the guards and the prisoners got aggressive during the experiment. The prisoners show agression and rebellion after the second day by using clothes to lock their doors and make it difficult for the guards to open them and get into the cells. The idea of self-concept was lost from the prisoners and the guards since after only a few days in the jail they had forgotten who they were before being prisoners or guards. The roles that they had to play for this experiment became their reality and some of them were having psychological problems because they were forgetting who they were.
