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Summary: People’s opinions of political figures influence how plausible they believe the information they provide to be, even when the information is incorrect, a new study reports.
For all the fact-checking and objective reporting produced by major media outlets, U.S. voters are more likely to believe information when it comes from a candidate those voters support — and vice versa, according to a new study co-authored by MIT scholars.
The study, conducted during the U.S. presidential primaries for the 2016 election, uses a series of statements by President Donald J. Trump — then one of many candidates in the Republican field — to see how partisanship and prior beliefs interact with evaluations of objective fact.
The researchers presented study participants with both true and false statements Trump made, surveying voters from both parties about their responses. They found participants’ opinions of Trump influenced how plausible people assumed the information to be. For instance, when Trump falsely suggested vaccines cause autism, a claim rejected by scientists, Republicans who supported Trump were more likely to believe the claim when it was attributed to Trump than they were when the claim was presented without attribution.
On the other hand, when Trump correctly stated the financial cost of the Iraq War, Democrats (and Republicans who did not support Trump) were less likely to believe his claim than they were when the same claim was presented in unattributed form.
“It wasn’t just the case that misinformation attributed to Trump was less likely to be rejected by Republicans,” says Adam Berinsky, a professor of political science at MIT and a co-author of the new paper. “The things Trump said that were true, if attributed to Trump, [made] Democrats less likely to believe [them]. … Trump really does polarize people’s views of reality.”
Overall, self-identified Republicans who were surveyed gave Trump’s false statements a collective “belief score” of about six, on a scale of 0-10, when those statements were attributed to him. Without attribution, the belief score fell to about 4.5 out of 10.
Self-identified Democrats, on the other hand, gave Trump’s true statements a belief score of about seven out of 10 when those statements were unattributed. When the statements were attributed to Trump, the aggregate belief score fell to about six out of 10.
“People are currently presented with a vast quantity of information, and the onus is on the individual to sort fact from fiction,” says Briony Swire, a cognitive psychologist at the University of Western Australia, in Perth, and a co-author of the study. “Using trust — or distrust — of a political figure is one shortcut we all use when it comes to assessing the validity of information.”
The paper, “Processing Political Information,” is being published today in the journal Royal Society Open Science. The co-authors are Swire; Berinsky; Stephan Lewandowsky of the University of Western Australia and the University of Bristol, and Ullrich K.H. Ecker of the University of Western Australia. Swire helped develop the study as a researcher at MIT in 2015.
In conducting the study, the researchers surveyed 3,042 U.S. citizens during the fall of 2015, presenting them with four true statements from Trump as well as four false ones.
After correcting the false statements, the scholars also asked the survey’s respondents if they were less likely to support Trump as a result — but found the matter was largely irrelevant to the respondents’ voting choices.
“It just doesn’t have an effect on support for him,” Berinsky says. “It’s not that saying things that are incorrect is garnering support for him, but it’s not costing him support either.”
The latest study is one in a series of papers Berinsky has published on political rumors, facticity, and partisan beliefs. His previous work has shown that, for instance, corrections of political rumors tend to be ineffective unless made by people within the same political party as the intended audience. That is, rumors about Democrats that are popular among Republican voters are most effectively shot down by other Republicans, and vice versa.
In a related sense, Berinsky thinks, solutions to matters of truth and falsehood in the current — and highly polarized — political moment may need to have a similar partisan structure, due to the blizzard of claims and counterclaims about truth, falsehoods, “fake news,” and more.
“In a partisan time, the solution to misinformation has to be partisan, because there just aren’t authorities that will be recognized by both sides of the aisle,” he says.
“This is a tough nut to crack, this question of misinformation and how to correct it,” he adds. “Anybody who tells you there’s an easy solution, like, ‘three easy things you can do to correct misinformation,’ don’t listen to them. If it were that easy, it would be solved by now.”
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Source: Peter Dizikes – MIT Image Source: NeuroscienceNews.com image is in the public domain. Original Research: Full open access research for “Processing political misinformation: comprehending the Trump phenomenon” by Briony Swire, Adam J. Berinsky, Stephan Lewandowsky, and Ullrich K. H. Ecker in Royal Society Open Science. Published online March 1 2017 doi:10.1098/rsos.160802
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[cbtabs][cbtab title=”MLA”]MIT “The Power of Perception: How Information Sources Affect Voters.” NeuroscienceNews. NeuroscienceNews, 1 March 2017. <https://neurosciencenews.com/information-perception-voters-6130/>.[/cbtab][cbtab title=”APA”]MIT (2017, March 1). The Power of Perception: How Information Sources Affect Voters. NeuroscienceNew. Retrieved March 1, 2017 from https://neurosciencenews.com/information-perception-voters-6130/[/cbtab][cbtab title=”Chicago”]MIT “The Power of Perception: How Information Sources Affect Voters.” https://neurosciencenews.com/information-perception-voters-6130/ (accessed March 1, 2017).[/cbtab][/cbtabs]
Processing political misinformation: comprehending the Trump phenomenon
This study investigated the cognitive processing of true and false political information. Specifically, it examined the impact of source credibility on the assessment of veracity when information comes from a polarizing source (Experiment 1), and effectiveness of explanations when they come from one’s own political party or an opposition party (Experiment 2). These experiments were conducted prior to the 2016 Presidential election. Participants rated their belief in factual and incorrect statements that President Trump made on the campaign trail; facts were subsequently affirmed and misinformation retracted. Participants then re-rated their belief immediately or after a delay. Experiment 1 found that (i) if information was attributed to Trump, Republican supporters of Trump believed it more than if it was presented without attribution, whereas the opposite was true for Democrats and (ii) although Trump supporters reduced their belief in misinformation items following a correction, they did not change their voting preferences. Experiment 2 revealed that the explanation’s source had relatively little impact, and belief updating was more influenced by perceived credibility of the individual initially purporting the information. These findings suggest that people use political figures as a heuristic to guide evaluation of what is true or false, yet do not necessarily insist on veracity as a prerequisite for supporting political candidates.
“Processing political misinformation: comprehending the Trump phenomenon” by Briony Swire, Adam J. Berinsky, Stephan Lewandowsky, and Ullrich K. H. Ecker in Royal Society Open Science. Published online March 1 2017 doi:10.1098/rsos.160802
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