Solomon Asch conducted an experiment in 1956 that demonstrated people's tendency to conform to group pressure and provide incorrect answers to basic visual judgments to fit in. Participants were shown cards with a line on them and asked to identify which of three other lines matched the length of the line, but unbeknownst to them, some of the confederates in the group intentionally gave the wrong answer. Despite the clear right answer, many participants went along with the incorrect majority to conform rather than stand alone. The study showed that both normative and informational social influence can cause people to conform to a group, even if it means ignoring their own judgment.