What Moscovici found was that, even  though a control group only mistook the slides for green twice in 792 judgments --  that is, the slides were very clearly blue --  and even though all the participants had been previously checked to ensure that  they had no serious visual impairments, majority group members judged the slides  as green on 8% of the trials, and 32% of majority group members judged  them as green at least once. 