<Li> "A gender or racial difference that is greater at higher levels of an outcome than at lower levels of an outcome ." </Li> <Li> "A gender or racial inequality in the chances of advancement into higher levels, not merely the proportions of each gender or race currently at those higher levels ." </Li> <Li> "A gender or racial inequality that increases over the course of a career ." </Li> <P> Cotter and his colleagues found that glass ceilings are correlated strongly with gender . Both white and minority women face a glass ceiling in the course of their careers . In contrast, the researchers did not find evidence of a glass ceiling for African - American men . </P>

The term glass ceiling refers to which of the following