Milgram's study evaluation


	Milagros
	AdvantagesGetting Started Good external validity - lab based relationship reflects wider real-life authority relationships. Hofling found high levels of obedience of nurses to unjustified demands of doctors. This means processes can be generalised. Replications have supported Milgrams findings - in a French documentary, people had to give electric shocks to others. 80% gave maximum. Behaviour was similar. Supports original conclusions.	Disadvantages Lacks internal validity - Orne and Holland suggest that pp's knew the shocks were fake. He wasn't testing what he intended to test. However, Sheridan and King found that 54% males and all females gave what they thought was a lethal shock to a puppy. Ethical issues - deception was used. This is a betrayal of trust and damages a psychologists reputation. They are less likely too volunteer in the future.
	Evaluation

Good external validity - lab based relationship reflects wider real-life authority relationships. Hofling found high levels of obedience of nurses to unjustified demands of doctors. This means processes can be generalised.
Replications have supported Milgrams findings - in a French documentary, people had to give electric shocks to others. 80% gave maximum. Behaviour was similar. Supports original conclusions.

Lacks internal validity - Orne and Holland suggest that pp's knew the shocks were fake. He wasn't testing what he intended to test. However, Sheridan and King found that 54% males and all females gave what they thought was a lethal shock to a puppy.
Ethical issues - deception was used. This is a betrayal of trust and damages a psychologists reputation. They are less likely too volunteer in the future.

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