Neurolinguistic priming reveals contrasting gender biases in Republicans and Democrats

A recent study provides evidence that political ideology shapes how people evaluate moral violations based on gender, with Republicans and Democrats exhibiting contrasting biases. Republicans judged authority violations by women and girls more harshly, while Democrats tended to judge such violations by men and boys as worse. These findings, published in The Journal of Social Psychology, shed light on how implicit biases can differ significantly across political lines.

The study aimed to explore how implicit gender biases influence moral judgments differently among Republicans and Democrats, given their distinct moral priorities and social values. By manipulating the timing of gender information in moral violation scenarios, the researchers sought to uncover how political ideology and framing effects shape evaluations of authority violations.

“When I was teaching biology in rural Kansas, I got really interested in how people maintain beliefs in the face of counterevidence. Since then, I have been looking specifically at how in-group membership influences cognition and beliefs,” said study author Brandon L. Bretl, an assistant professor at the University of Texas at Tyler.

The researchers employed an experimental survey design to investigate how political ideology influences gender biases in moral judgments. They recruited 826 participants from a United States census-matched sample, ensuring diverse representation in terms of age, gender, and political affiliation. The participants self-identified as either Democrats or Republicans, excluding independents.

The survey included a series of short moral violation scenarios, known as vignettes, designed to test reactions in two domains: authority violations, such as a student interrupting a teacher, and justice violations, such as cheating during a test.

Participants were randomly assigned to one of four experimental conditions that manipulated the gender of the vignette’s protagonist and the placement of gender-related information within the sentences. In some conditions, gender was introduced early in the vignette using a noun, while in others, it was introduced later through a pronoun. This manipulation aimed to test the influence of timing on gender stereotype activation.

“Our brains use different neural circuits for different tasks,” Bretl told PsyPost. “The processing done by those circuits happens very quickly—often in less than a tenth of a second. Even so, some processes don’t happen quickly enough in certain contexts. For example, in this study, I asked people to judge written scenarios of men and women committing moral violations. I then changed the gender of the person committing the violation between two experimental conditions.

“I also varied the placement of gender information in two additional conditions, presenting it either at the beginning of the sentence with a noun (‘You see a woman…’) or later in the sentence using a pronoun (‘You see a student…her…’). The idea was that moral judgments occur rapidly, so in cases where we expect a gender bias—for example, a woman disrespecting authority—we could mitigate that bias by presenting gender information later in the sentence.”

After reading each vignette, participants rated the severity of the moral violation on a five-point scale, ranging from “not bad” to “extremely bad.” To ensure results were not influenced by unrelated factors, the researchers controlled for variables such as participant sex, religiosity, and the strength of political affiliation.

The findings revealed distinct patterns of gender bias influenced by political ideology. Republicans rated authority violations by women and girls as more severe than those committed by men and boys when gender information appeared early in the sentence. This pattern suggests that traditional gender norms emphasizing female deference to authority may be particularly salient among Republican participants. Interestingly, this bias disappeared when gender information was introduced later in the sentence, implying that subtle shifts in how information is framed can reduce implicit biases.

In contrast, Democrats showed the opposite bias in their evaluations of authority violations. They rated male protagonists as more culpable than female protagonists, particularly when gender was introduced early in the vignette. This pattern may reflect a sensitivity to social equity issues and an overcorrection for perceived biases against women, resulting in harsher judgments of male authority violators. As with Republicans, the timing of gender information affected these judgments, with late gender cues reducing the observed bias.

“The bias against boys and men committing authority violations among Democrats surprised me,” Bretl said. “One explanation is an ‘overcorrection bias,’ where Democrats, being aware of biases against women, have worked to overcome those biases but end up overshooting the mark. More research is needed to confirm this.”

In scenarios involving justice violations, such as cheating or dishonesty, neither Republicans nor Democrats exhibited significant gender bias. This finding underscores the domain-specific nature of implicit biases, as justice violations—focused on fairness and harm—may not activate the same gendered stereotypes as authority violations. The results highlight how moral judgments are shaped not only by political ideology but also by the context in which violations occur and the way information is presented.

“The key takeaways from this study are: 1) gender biases function in highly nuanced ways, 2) Republicans are biased against girls and women committing authority violations, while Democrats are biased against boys and men committing authority violations, and 3) the gender of the protagonist does not influence ratings of justice violations,” Bretl explained. “This is relevant in contexts like status offenses—crimes punishable because of the offender’s age, such as truancy or underage drinking—because these authority-based offenses are the only area of the criminal justice system where girls outnumber boys.”

The study introduces a novel method for examining implicit biases by manipulating the presentation of gender information in moral scenarios. However, the study has limitations. The vignettes primarily featured youth protagonists, which may not fully capture biases related to adult authority figures. Additionally, the findings are specific to the polarized political and cultural context of the United States in 2023.

“This study focused on U.S. participants during a time of heightened political polarization,” Bretl noted. “The findings might not generalize to other cultural or political contexts. Also, while we controlled for factors like age and religiosity, biases related to age or other demographic traits might still play a role.”

To build on these findings, future studies could examine how other social factors interact with gender and political ideology in shaping moral judgments. Researchers could also explore interventions to mitigate implicit biases, such as framing information in ways that neutralize stereotype activation.

“The long-term goals include developing a better understanding of how stereotypes and biases function in the brain and in context,” Bretl said. “Such knowledge can be used to improve outcomes in areas where biases can have undesirable effects, such as criminal sentencing and beliefs about science.”

“The study is unique in its blending of neurolinguistics and social psychology. The experimental design is relatively complex, but it needed to be to tease out the nuanced differences between Republicans’ and Democrats’ gender biases when making moral judgments.”

The paper, “Neurolinguistic Priming and Gender Stereotype Effects in the Ratings of Justice vs. Authority Moral Violations: Republicans and Democrats,” was authored by Brandon L. Bretl and Christopher L. Thomas.