Ironically, one of the areas of psychology the field has struggled the most to accept is also one with the most robust results and largest effect sizes. That area is ... stereotype accuracy.
It's exactly what it sounds like and it shows that, surprise, anecdotal stereotypes people have about other people are actually pretty accurate when tested. This is not a politically correct conclusion so the hard-left academic world struggled for a long time to accept this (and arguably still does).
"This chapter discusses stereotype accuracy as one of the largest and most replicable effects in all of social psychology. This chapter is divided into three major sections. The first, History of Obstacles to Social Psychology Accepting Its Own Data on Stereotype Accuracy, reviews some of the obstacles social psychology has faced with respect to accepting that stereotype (in)accuracy is an empirical question, and that the empirical data do not justify assumptions, definitions, or declarations that stereotypes are inaccurate. The second, The Empirical Assessment of Stereotype (In)Accuracy, summarizes what is now an impressive body of literature assessing the (in)accuracy of racial, gender, age, national, ethnic, political, and other stereotypes. The third, Stereotype (In)Accuracy: Knowns, Unknowns, and Emerging Controversies, summarizes broad and emerging patterns in that body of literature, highlighting unresolved controversies, and identifying important directions for future research. (PsycInfo Database Record (c) 2020 APA, all rights reserved)"
It's exactly what it sounds like and it shows that, surprise, anecdotal stereotypes people have about other people are actually pretty accurate when tested. This is not a politically correct conclusion so the hard-left academic world struggled for a long time to accept this (and arguably still does).
https://psycnet.apa.org/record/2015-19097-002
"This chapter discusses stereotype accuracy as one of the largest and most replicable effects in all of social psychology. This chapter is divided into three major sections. The first, History of Obstacles to Social Psychology Accepting Its Own Data on Stereotype Accuracy, reviews some of the obstacles social psychology has faced with respect to accepting that stereotype (in)accuracy is an empirical question, and that the empirical data do not justify assumptions, definitions, or declarations that stereotypes are inaccurate. The second, The Empirical Assessment of Stereotype (In)Accuracy, summarizes what is now an impressive body of literature assessing the (in)accuracy of racial, gender, age, national, ethnic, political, and other stereotypes. The third, Stereotype (In)Accuracy: Knowns, Unknowns, and Emerging Controversies, summarizes broad and emerging patterns in that body of literature, highlighting unresolved controversies, and identifying important directions for future research. (PsycInfo Database Record (c) 2020 APA, all rights reserved)"