The study explores the beliefs and values of U.S. psychology professors regarding controversial empirical claims and normative preferences for how such scholarship should be treated. Through qualitative interviews and a quantitative survey, the researchers identified 10 taboo conclusions that professors strongly disagreed on, ranging from genetic explanations for group differences to demographic diversity in the workplace leading to worse performance. Professors reported high levels of self-censorship, particularly for the evolution of sexually coercive behavior, and fear of social sanctions if they expressed their beliefs openly. Conservative professors showed more self-censorship and less desire to discourage research. Younger, more left-leaning, and female faculty were generally more opposed to controversial scholarship. Most professors opposed suppressing scholarship or punishing peers based on moral concerns about research conclusions. The findings highlight the need for a more inclusive and diverse discussion of these issues in psychology.The study explores the beliefs and values of U.S. psychology professors regarding controversial empirical claims and normative preferences for how such scholarship should be treated. Through qualitative interviews and a quantitative survey, the researchers identified 10 taboo conclusions that professors strongly disagreed on, ranging from genetic explanations for group differences to demographic diversity in the workplace leading to worse performance. Professors reported high levels of self-censorship, particularly for the evolution of sexually coercive behavior, and fear of social sanctions if they expressed their beliefs openly. Conservative professors showed more self-censorship and less desire to discourage research. Younger, more left-leaning, and female faculty were generally more opposed to controversial scholarship. Most professors opposed suppressing scholarship or punishing peers based on moral concerns about research conclusions. The findings highlight the need for a more inclusive and diverse discussion of these issues in psychology.