Can a room full of wrong answers push you to give the same wrong answer? You set up a group of 10 people who are secretly told to choose an obviously incorrect response on purpose. One real participant joins them without knowing. The group is shown simple shapes and asked to match two that are the same size. The planted members all pick the wrong pair first. Then the real participant answers. A second question reverses the order so the participant answers before anyone else. You repeat this with 20 male and 20 female participants and compare how often each gender follows the crowd.