Final answer:
Superordinate goals can reduce intergroup conflict and prejudice.
Step-by-step explanation:
The creation of superordinate goals has been shown to be effective in reducing intergroup conflict. Research has shown that when two opposing groups work together toward a common goal, prejudice and conflict between the groups decreases. For example, the Robbers Cave experiment found that when two groups at a camp collaborated on tasks, prejudicial attitudes decreased. Similarly, the jigsaw classroom technique, where diverse students work together on assignments, has been shown to reduce prejudice.