Political homogeneity is problematic because it biases research and teaching and reduces academic credibility. In a recent book on social psychology, The Politics of Social Psychology edited by Jarret T. Crawford and Lee Jussim, Mark J. Brandt and Anna Katarina Spälti, show that because of left-wing bias, psychologists are far more likely to study the character and evolution of individuals on the Right than individuals on the Left. Inevitably affecting the quality of this research, though, George Yancey found that sociologists prefer not to work with fundamentalists, evangelicals, National Rifle Association members, and Republicans. Even though more Americans are conservative than liberal, academic psychologists’ biases cause them to believe that conservatism is deviant. In the study of gender, Charlotta Stern finds that the ideological presumptions in sociology prevent any but the no-differences-between-genders assumptions of left-leaning sociologists from making serious research inroads. So pervasive is the lack of balance in academia that more than 1,000 professors and graduate students have started Heterodox Academy, an organization committed to increasing “viewpoint diversity” in higher education. The end result is that objective science becomes problematic, and where research is problematic, teaching is more so.