 Prosser was one of the key figures in the debate on how to best educate Black students.Arguments made in her dissertation were used in the 1920s and 1930s in the debate about school segregation.Her dissertation "examined personality differences in black children attending either voluntarily segregated or integrated schools and concluded that black children were better served in segregated schools" As a Black female psychologists, Prosser's voice was crucial during her time and now because the voices and this histories of Black Psychology and Black Psychologist has been absent from the narratives of mainstream American psychology.