Final answer:
The studies that imply people exhibit heightened levels of prejudice when economically frustrated support the Realistic Conflict theory.
Step-by-step explanation:
According to the information provided, the studies that suggest people exhibit heightened levels of prejudice when they are economically frustrated offer support for the Realistic Conflict theory. The Realistic Conflict theory is a sociological perspective that views prejudice and discrimination as a result of competition over limited resources. It suggests that when individuals perceive a threat to their economic well-being, they are more likely to exhibit prejudice towards those they perceive as competitors for those resources.