Participants in this experiment are fitted with a fake facial scar and told they are to be interviewed to see how their deformity influences the way they are treated. Just before the interview last minute adjustments are made to the scar but in fact, and unbeknown to the participant the scar is removed entirely.
Right after the interview, in almost every case, the participants were full of all kinds of examples of how the interviewer behaved negatively due to their “deformity”. Amazingly, in some cases the belief continued even after they were shown on video that the scar had been removed.