Stereotype threat is one of the most famous and influential phenomena in all of psychology. The famous paper (Steele & Aronson, 1995) unveiling the phenomenon has been cited over 5000 times, according to Google Scholar. And for good reason.
The original studies seemed to reveal an extraordinarily striking finding. The typically very large average difference in standardized test scores between African Americans and Whites was, supposedly, a very flimsy, superficial difference, readily eliminated by either of two tiny tweaks to the conditions under which such tests were administered. Given that, for over 50 years, educators and social scientists had found it essentially impossible to craft programs eliminated racial achievement differences, this was a “world-changing” finding.