The diversity of opinions that concurrently support gender segregation in education creates a complex and fragmented dynamic. The miscellany of proponents includes: conservatives emphasizing innate gender differences, traditionalists favoring rigid gender roles, democrats striving to remedy past discrimination, progressives promoting diversity in academic choices, and feminists championing exclusively female support systems. Because the coalition of proponents consists of parties with dissimilar interests, the body of "educational research regarding the efficacy of single-sex schools is mixed at best". Moreover, advocates tend to bolster their respective positions by emphasizing specific aspects of educational research without addressing the remaining "array of evidence regarding institutions, structures, and processes that construct views on gender and equality". Although educational research supporting gender segregation in schools is rife with ambiguity, "the social research is absolutely clear that separation on the basis of identity characteristics creates feelings of individual inadequacy and instills beliefs about group hierarchy".