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Newly analysed recording challenges Zimbardo’s account of his infamous prison experiment

Many people are aware of the Stanford prison experiment, which “had to be abandoned when some of the volunteers playing the role of guards began mistreating the volunteers acting as prisoners.”

The validity of the study has long been a source of debate. But a new analysis suggests that the researchers had so much influence on the participants that the study was “not so much an experiment but more a form of theatre”.