40 male ppts - volunteer sample for a memory study
ppts drew lots for their roles, confederate always as the learner, the true ppt as the teacher
Experimenter wore a lab coat
They were told it was a word association task, if the learner made a mistake they must administer electric shocks (fake) from 15v-450v(severe shock)
If they felt unsure about continuing they used four prods e.g. please continue/the experiment requires you to continue.