procedure: sample of 172 female participants, told they were taking part in a colour perception task. participants were placed in groups of six, shown 36 slides, all varying shades of blue. participants had to state aloud the colour of each slide.
Two of six participants were confederates.
In one condition (consistent) the two confederates said all 36 slides were green.
In the second condition (inconsistent) the confederates said 24 of slides were green and 12 were blue.