The contact hypothesis asserts that any intergroup contact can decrease prejudice under particular situations. The contact hypothesis has been profoundly explored since its expansion over the past 50 years ago. It is considered to be one of the most operative tactics for expanding intergroup relations. At the same time, the significance of the contact hypothesis is broadly known to be questioned to significant criticism. A number of social psychologists have argued that that the contact hypothesis is too optimistic and propose that contact may not be effectual in reducing prejudice and stereotypes even under ideal situations. The research that verified the contact hypothesis has also been criticized for its limited possibility and emphasis
