The middle level of conformity where a person changes their public behaviour and their private beliefs, but only while they are in the presence of the group
This is likely to be the result of informational social influence, as individuals look to another for guidance when undertaking an ambiguous task, similar to the results found in Jenness' experiment, in order to be 'right'
Social psychology also suggests that individuals can exercise personal responsibility for their actions and demonstrate free will through showing independent behaviour
Explanations of conformity (NSI/ISI) adopt a nomothetic approach as they attempt to provide general principles relating to human behaviour when observed under group pressure from a majority
Social psychology uses scientific methods, often in highly-controlled laboratory settings, to investigate key concepts which can be replicated, for example, Asch's original study
The fact that Asch only used male participants in his sample shows a beta bias, as his research may have ignored or minimised the differences between men and women in relation to conformity
Extremely sadistic behaviour was displayed by around one third of the participants in the role of guards, while a few guards actually helped the prisoners by offering support, sympathy, cigarettes and reinstating privileges
This suggests that situational factors are not the only cause of conformity to social roles, and dispositional factors such as personality also play a role, implying that Zimbardo's conclusion could have been overstated
Zimbardo followed the ethical guidelines of Stanford University and debriefed his participants afterwards, but he acknowledged that the study should have been stopped earlier