Research support for the agentic state came from Milgram's own studies.
At some point during Milgram's experiment participants generally stopped giving shocks and asked the experimenter about the procedure
E.g. "Who is responsible if Mr Wallace is harmed"
After being told by experimenter that he is responsible not the teacher, they completed the procedure without objection
One limitation is that the agentic shift doesn't explain many research findings about obedience.
it does not explain the findings of Rank and Jacobson's (1977) study
They found that 16 out of 18 hospital nurses disobeyed orders from a doctor to administer an excessive drug dose to a patient
The doctor was an obvious authority figure. But almost all the nurses remained autonomous, as did many of Milgram's participants
This suggests that, at best, the agentic shift can only account for some situations of obedience.
A limitation of the agentic state is that it is not supported by real world events.
Mandel (1998) described how members of German Reserve Police Battalion 101 murdered Polish civilians without being directly ordered to
They were given a choice so acted autonomously
It is possible that other reasons, such as hatred, prejudice, racism and greed also played a role in their actions
This suggests that Milgram's explanation of the agentic state is oversimplified, as it claims behaviour is the result of a single factor - acting as the agent of a destructive authority.