In the 1950s psychologist Solomon Asch conducted a series of experiments to investigate the extent to which social pressure from a majority group could affect a person to conform. Asch’s experiments were simple vision tests. A group of eight male college students were placed in a room, shown a card with a line segment on it, and then shown another card with three line segments labelled A, B, and C. One of the line segments on the second card was the same length as the line segment on the first card, while the other two line segments were clearly of a different length. Participants were asked to write down their answers and then give their answers aloud. Seems like a pretty straight forward experiment, but there was a twist.