The psychology of misinformation

• A. Confirmation bias
• B. The illusory truth effect ✓
• C. The availability heuristic
• D. Motivated reasoning

Why: The illusory truth effect describes how repeated exposure to a statement increases its perceived truthfulness, even when people initially knew it was false. Familiarity is easily mistaken for accuracy.

• A. Fatigue increases the brain's capacity for critical analysis
• B. Analytical thinking requires cognitive effort, and people default to intuitive judgments when resources are limited ✓
• C. Distraction makes people more skeptical of all incoming information
• D. Tired brains store memories more accurately than rested brains

Why: Deliberate, analytical thinking is effortful. When cognitive resources are depleted, people rely on quick intuitive judgments, which makes them more susceptible to misinformation.

• A. Anchoring bias
• B. The availability heuristic ✓
• C. The bandwagon effect
• D. Hindsight bias

Why: The availability heuristic leads people to estimate how likely or common something is based on how easily vivid examples come to mind, which can make dramatic but rare claims seem more credible.

• A. Emotion reduces the brain's ability to store information
• B. Strong emotions can shift attention away from evaluating evidence and increase the urge to share the content ✓
• C. Emotional content is always factually accurate
• D. Neutral headlines are rarely read by the public

Why: Emotional arousal tends to capture attention and can reduce careful evaluation of evidence, while also motivating people to share content, which helps misinformation spread.

• A. Reading only sources that agree with your existing views
• B. Pausing to ask where the claim originated and whether it has been independently verified ✓
• C. Relying on your memory of what you have read before
• D. Trusting content that appears many times in your feed

Why: Checking the source and seeking independent verification interrupts the automatic familiarity response, encouraging evaluation of evidence rather than reliance on how a claim feels.

• A. The tendency to believe statements more after repeated exposure to them, regardless of whether they are true ✓
• B. The tendency to remember events more vividly when they are emotionally charged
• C. The tendency to seek out information that confirms existing beliefs
• D. The tendency to overestimate how much others agree with our opinions

Why: The illusory truth effect describes how repeated exposure to a statement increases its perceived truthfulness, even when the statement is false. Familiarity is mistakenly processed as a signal of accuracy.

• A. Processing fluency, where familiar statements are easier to process and feel more true ✓
• B. Confirmation bias, where people only read sources that agree with them
• C. The availability heuristic, where examples that come to mind easily seem more common
• D. Motivated reasoning, where people deliberately choose beliefs that serve their identity

Why: Researchers commonly attribute the effect to processing fluency: repeated statements are processed more easily, and people unconsciously interpret that ease as a sign of truth.

• A. They rated the truthfulness of trivia statements, some of which had been shown to them earlier ✓
• B. They memorized lists of words and recalled them after a delay
• C. They watched news clips and identified which ones were fabricated
• D. They played a game requiring them to detect deception in others' statements

Why: In the 1977 study, participants rated the truth of unfamiliar trivia statements. Statements they had seen before, even just once, were rated as more likely to be true than new ones.

• A. Repeated false claims can gain credibility simply through frequency, even after they are debunked ✓
• B. Fact-checkers rarely repeat claims, so people never hear the corrections
• C. People always remember the source of information, so they discount repeated claims
• D. The effect only works on people who have no prior knowledge of the topic

Why: Because familiarity boosts perceived truth, repeating a false claim, even within a debunking, can make it feel more believable. This is why fact-checks should avoid restating the false claim prominently.

• A. Leading with the accurate information and briefly noting the false claim, rather than repeating the falsehood in detail ✓
• B. Repeating the false claim several times so people recognize it as wrong
• C. Avoiding any mention of the false claim so it is not seen again
• D. Presenting the false claim in a bold headline so it is easy to remember and reject

Why: Leading with accurate information limits how often and how prominently the false claim is repeated. Repeating a falsehood, even to refute it, risks increasing its familiarity and perceived truth.

• A. Reasoning carefully only when given a financial reward
• B. The tendency to evaluate evidence in a way that protects or supports conclusions we already want to be true ✓
• C. A formal logical method for testing hypotheses
• D. Reasoning that is driven entirely by emotion with no cognitive processing involved

Why: Motivated reasoning describes how people process information with a directional goal, often favoring conclusions that align with their beliefs, identity, or desires, rather than weighing evidence neutrally.

• A. Availability heuristic
• B. Dunning-Kruger effect
• C. Confirmation bias ✓
• D. Anchoring effect

Why: Confirmation bias is the tendency to favor information that supports prior beliefs while discounting contradictory evidence, and it is a core mechanism behind motivated reasoning.

• A. Corrections are almost never published by reliable sources
• B. Accepting the correction could threaten their group identity or self-image ✓
• C. People cannot understand written text
• D. Memory of the original claim is completely erased by the correction

Why: When beliefs are tied to identity and group membership, accepting a correction can feel like a social or personal loss, so people may resist it even when they understand the evidence.

• A. A process where corrections always fully change people's minds
• B. A proposed phenomenon in which corrections sometimes strengthen people's original false beliefs, though later research has found it to be rare ✓
• C. The reduction of misinformation spread caused by fact-checking platforms
• D. A computer error that reverses search results

Why: The backfire effect was proposed in early studies but subsequent large-scale replications found that it occurs infrequently, so researchers now emphasize that corrections usually work modestly, though not always.

• A. People with strong group identities evaluate information in ways that protect their standing within their group, even at the cost of accuracy ✓
• B. Identity has no measurable effect on how people judge factual claims
• C. People always evaluate facts identically regardless of their political affiliation
• D. Identity-protective cognition only affects people who have no education

Why: Research by Dan Kahan and others shows that people may process data on contested issues in ways that signal loyalty to their group, meaning that more numeracy or knowledge can sometimes increase polarization rather than reduce it.

• A. Sadness
• B. Outrage ✓
• C. Boredom
• D. Contentment

Why: Studies of social media sharing, including work by Brady and colleagues, find that moral-emotional language, especially outrage, increases the likelihood that content is shared. Outrage captures attention and motivates people to respond quickly, which helps content spread.

• A. A calm judgment about what is ethically right
• B. Anger triggered by perceived violations of moral norms
• C. Disgust directed at unfamiliar foods
• D. Fear of losing social status

Why: Moral outrage is anger elicited when someone perceives that a moral norm has been violated. Researchers study it because it is a powerful driver of engagement and sharing on social platforms.

• A. People always check facts before sharing emotional content
• B. Strong emotion tends to reduce attention to accuracy and encourages quick, impulsive sharing
• C. Emotional headlines are always verified by platforms
• D. Neutral headlines are typically false

Why: Emotional arousal can shift people toward fast, intuitive processing and away from deliberate evaluation. Research on the accuracy of shared news suggests that people often share without fully considering whether content is true, especially when they feel strongly.

• A. People only share content from strangers
• B. Content that portrays an opposing group negatively is more likely to be shared within one's own group
• C. Group members always fact-check each other
• D. Out-group members are the most trusted sources

Why: Content that frames an out-group as threatening or morally wrong can generate outrage and signal loyalty to one's own group. This social reward encourages sharing, even when the content is unverified.

• A. Making emotional content more graphic to increase awareness
• B. Prompting users to consider accuracy before sharing
• C. Removing all emotional language from news reporting entirely
• D. Encouraging users to share faster to keep up with trends

Why: Accuracy prompts, which ask people to rate or consider the accuracy of a headline before sharing, have been shown in experiments to modestly improve the quality of what people share. They work by redirecting attention from emotional reaction to truthfulness.

• A. Dunning-Kruger effect
• B. Confirmation bias ✓
• C. Availability heuristic
• D. Bandwagon effect

Why: Confirmation bias is the tendency to favor information that supports existing beliefs while discounting or ignoring evidence that contradicts them. It is one of the most powerful drivers of misinformation acceptance.

• A. People believe statements more after hearing them repeatedly, even when they are false ✓
• B. People trust information more when it comes from an expert
• C. People assume that rare events are unlikely to happen
• D. People overestimate their own knowledge on complex topics

Why: The illusory truth effect shows that repeated exposure to a claim increases its perceived truthfulness, because familiarity is often mistaken for accuracy. This is why repeated false headlines can become believable over time.

• A. Official statistics from reliable sources
• B. How easily examples come to mind ✓
• C. The opinions of their social group
• D. How much effort they put into research

Why: The availability heuristic causes people to overestimate the likelihood of events that are vivid, recent, or emotionally memorable, since these examples come to mind easily. Misinformation often exploits this by presenting dramatic, memorable cases.

• A. The tendency to adopt beliefs because many others appear to hold them ✓
• B. The tendency to reject claims that challenge personal identity
• C. The tendency to attribute success to skill rather than luck
• D. The tendency to remember the first piece of information received

Why: The bandwagon effect is the tendency to adopt beliefs or behaviors because others seem to share them. Perceived social consensus can make false claims seem credible, especially when they spread quickly among peers.

• A. It causes people to forget facts they once knew
• B. It leads people to evaluate evidence in ways that protect their preferred conclusions ✓
• C. It makes people distrust all sources equally
• D. It prevents people from understanding numerical information

Why: Motivated reasoning means people scrutinize evidence harshly when it threatens their identity or values, and accept weak evidence that supports them. This makes factual corrections less effective, especially on emotionally charged topics.

• A. The source uses bold headlines and emotional language
• B. The source cites verifiable primary evidence and names its authors
• C. The source has a large number of social media shares
• D. The source's website has a professional-looking design

Why: Credible sources make their claims checkable by citing primary evidence and identifying accountable authors. Emotional language, popularity, and polished design can all be produced cheaply by misinformers, so they are weaker trust signals.

• A. Images are always verified by fact-checkers before publication
• B. Visual content triggers a feeling of evidence, a form of processing fluency that makes claims seem more true
• C. Charts are legally required to be accurate in news articles
• D. Readers automatically distrust text-only content

Why: Visuals increase perceived credibility through processing fluency and the illusion of evidence, even when the image does not support the claim. This is why misinformation often uses unrelated or miscaptioned images.

• A. A domain ending in .gov or .edu guarantees the content is accurate
• B. A domain name is irrelevant to credibility in every case
• C. Domain endings can hint at institutional affiliation, but they can be imitated or misused and do not guarantee accuracy
• D. Only domains purchased before 2000 can be trusted

Why: Domain endings like .gov or .edu can suggest institutional backing, but they are not foolproof: sites can mimic official names, institutions can host poor-quality content, and a domain alone says nothing about the accuracy of specific claims.

• A. It cites a peer-reviewed study
• B. It frames the reader as an insider against an establishment, a common tactic that substitutes suspicion for evidence
• C. It identifies a specific medical professional by name
• D. It provides a clear date of publication

Why: Conspiratorial framing that pits the reader against experts or institutions is a classic misinformation tactic. It encourages distrust of credible sources while offering no verifiable evidence in their place.

• A. Reading the entire article carefully before forming any opinion about it
• B. Leaving the page to check what other independent sources say about the publication and its claims
• C. Trusting the first search result because it appears at the top
• D. Judging credibility by how well the writing matches your existing beliefs

Why: Lateral reading means opening new tabs to investigate the source itself and its claims through independent sources, rather than staying on the page and evaluating it only on its own presentation. Professional fact-checkers use this approach because a site can look convincing while being misleading.

• A. Exposing people to a weakened form of misleading arguments along with refutations builds resistance to later persuasion attempts. ✓
• B. Banning all false content on social media platforms before it can reach users.
• C. Giving people medical vaccines that improve their cognitive reasoning abilities.
• D. Repeating a false claim many times until it becomes familiar and believable.

Why: Inoculation theory, developed by William McGuire, draws an analogy to medical vaccination: a small, weakened dose of a persuasive attack, paired with a refutation, builds 'mental antibodies' that make people more resistant to stronger versions later.

• A. Waiting until a false claim has spread widely and then correcting it with fact-checks.
• B. Warning people in advance about manipulation techniques they are likely to encounter. ✓
• C. Restricting access to news sources that people disagree with politically.
• D. Asking people to memorize a list of verified facts about current events.

Why: Prebunking anticipates manipulation before it occurs by alerting people to common tactics (such as emotional manipulation, false dichotomies, or conspiracy framing), which is more effective than debunking after false beliefs have formed.

• A. It asks players to fact-check articles and report the results to a central database.
• B. It has players take on the role of a misinformation producer to learn manipulation techniques firsthand. ✓
• C. It shows players graphic images to create fear about the consequences of believing false news.
• D. It rewards players for sharing the most popular headlines with their social networks.

Why: The Bad News game uses an active inoculation approach, placing players in the role of a fake news producer so they experience and recognize techniques like impersonation, polarization, and emotional appeals from the inside.

• A. Specific false claims are always too complex for people to remember accurately.
• B. Techniques transfer across topics, so recognizing a pattern helps with new misinformation that was never seen before. ✓
• C. Memorizing false claims causes people to lose trust in all information sources.
• D. Manipulation techniques are legally protected, so people are more likely to remember them.

Why: Specific false claims quickly become outdated, while manipulation techniques like scapegoating, cherry-picking, or fake experts recur across topics. Learning to spot the technique gives people a generalizable defense against unfamiliar misinformation.

• A. They always make people more gullible toward all information sources.
• B. People may become overly skeptical and dismiss accurate information along with false information. ✓
• C. They require participants to pay for expensive training programs.
• D. They permanently change people's political party affiliation.

Why: A known concern is 'discernment' versus blanket distrust: if people learn to be suspicious without learning to distinguish reliable from unreliable sources, they may reject true information too. Effective resilience training aims to improve discernment, not just skepticism.