Political endorsements by scientific journals reduce public trust in research

When scientific journals endorse political candidates, they risk diminishing public confidence in the scientific community, particularly among moderate and conservative Americans. This phenomenon was explored in three separate studies published in the journal Group Processes & Intergroup Relations. The research sought to understand how political stances from scientific publications impact public trust in science, a factor crucial for addressing global challenges such as pandemics and climate change.

Historically, scientific organizations have maintained a politically neutral stance to preserve their reputation as objective authorities. However, recent high-profile endorsements have challenged this tradition, often framing these political stances as necessary defenses of scientific integrity. To investigate this effect, researchers examined the psychological concept of motivated reasoning—the tendency to process information in a way that confirms existing beliefs and political identities.

When individuals encounter information that conflicts with their political views, they often scrutinize or reject the source. The researchers hypothesized that political endorsements from scientific journals might trigger this psychological mechanism, leading to a decline in perceived objectivity and societal value of science. In a series of experiments conducted before and during the 2020 presidential election, participants read either neutral background information about prominent scientific journals or actual editorials endorsing a political candidate.

The studies found that reading political endorsements significantly lowered overall trust in scientific institutions and increased the belief that science is biased. This effect was more pronounced among moderate and conservative individuals, who also reported a higher likelihood of holding conspiracy theories about science. However, the endorsements did not significantly affect participants' willingness to follow practical scientific advice or comply with health guidelines.

The findings suggest that while political endorsements may undermine public trust in science, they do not necessarily lead to a decrease in practical adherence to scientific recommendations.