Chapter 11 Quiz: Repetition and the Illusory Truth Effect

Propaganda, Power, and Persuasion

Part A: Multiple Choice (1 point each)

1. The original illusory truth effect study (Hasher, Goldstein, and Toppino, 1977) found that repeated exposure to a statement:

a) Increased perceived truth only for statements that participants initially rated as plausible b) Increased perceived truth for true, false, and uncertain statements regardless of initial ratings c) Increased perceived truth only when participants could not remember having seen the statement before d) Increased perceived truth for uncertain statements only, not for statements participants initially identified as false

2. The cognitive mechanism most responsible for the illusory truth effect is:

a) Confirmation bias — participants preferentially remember statements that confirm their existing beliefs b) Availability heuristic — repeated statements are more cognitively available and therefore judged as more common c) Cognitive fluency — repeated exposure makes processing easier, and that ease is misattributed to truth d) Anchoring — the first exposure to a statement anchors subsequent judgments toward the initial impression

3. Fazio, Brashier, Payne, and Marsh (2015) found that the illusory truth effect:

a) Does not apply to statements that are obviously false and that participants correctly identified as false on first encounter b) Applies to obviously false statements even when participants already know the correct answer c) Is completely prevented by providing explicit fact-checking feedback before the second exposure d) Is substantially larger for politically charged statements than for neutral ones

4. The Volksempfänger (People's Receiver) was designed with a technical restriction that:

a) Prevented reception of commercial advertising to increase the credibility of news broadcasts b) Limited reception to domestic broadcasts, making foreign broadcasts technically inaccessible c) Required listeners to register with local authorities before receiving the signal d) Prevented recording of broadcasts to ensure messages could only be heard in real time

5. The "truth sandwich" approach to corrections recommends:

a) Beginning and ending a correction with the false claim, with the accurate information in the middle b) Leading with accurate information, briefly mentioning the false claim, and returning to the accurate information c) Repeating the false claim three times and the accurate information three times to equalize their fluency d) Avoiding any reference to the false claim, mentioning only the accurate information

6. Pennycook, Cannon, and Rand (2018) found that prior exposure to a false news headline:

a) Only increased accuracy ratings when participants remembered having seen the headline before b) Increased accuracy ratings only for politically aligned false headlines c) Increased accuracy ratings even without any engagement with the headline's content d) Decreased accuracy ratings, because prior exposure triggered skepticism about repetition

7. The "false independence problem" in algorithmic repetition refers to:

a) Algorithms that generate multiple fake accounts to spread the same claim b) Multiple apparently independent sources amplifying the same original claim, creating the false impression of corroborating evidence c) The false belief that personal social media choices are independent of algorithmic influence d) Platforms independently developing similar recommendation systems without coordination

8. Goebbels's instruction to German media outlets to repeat the same key messages simultaneously across all outlets served primarily to:

a) Prevent foreign spies from identifying which messages were propaganda by hiding them among the other content b) Create saturation repetition while eliminating alternative framings that would need their own repetition to feel credible c) Build public awareness of the propaganda ministry's coordination capacity as a display of state power d) Ensure that audiences who missed one broadcast would catch the same message in another

9. The "crossover point" in radicalization, as described in this chapter, refers to:

a) The moment when an individual's radicalized beliefs become strong enough to motivate action b) The point at which radicalized claims have accumulated higher fluency than mainstream reality through repetition c) The transition from consuming extremist content to producing it d) The point at which a radicalized individual recruits others to the community

10. The SUCCES framework for designing "sticky" counter-propaganda messages includes which of the following components?

a) Systematic, Urgent, Challenging, Corrective, Emotional, Sourced b) Simple, Unexpected, Concrete, Credible, Emotional, Story c) Specific, Understandable, Catchy, Clear, Effective, Shareable d) Structured, Unified, Concise, Correct, Engaging, Scientific

Part B: Short Answer (5 points each)

11. Sophia's opening reflection identifies a situation in which she "knows" a claim to be false but notices that it still carries a sense of familiarity that she cannot explain through any specific encounter with evidence. Explain, using the terminology of the chapter, what cognitive mechanism is responsible for this experience.

12. The chapter argues that the correction paradox means that "prevent, don't just correct" is more effective as a counter-propaganda strategy. What does prevention look like in practice, and why is it more effective than correction after the fact?

13. Describe the specific way in which algorithmic content delivery can produce repetition effects equivalent to organized propaganda without any centralized coordinating authority. What is the role of confirmation bias in this process?

14. The chapter states that Goebbels "varied the presentation while preserving the core message." Why is this specific approach to repetition more effective than simple verbatim repetition of the same message? Use the cognitive fluency mechanism to explain your answer.

Part C: Extended Response (15 points)

15. Sophia's discovery of the illusory truth effect reframes her journalism seminar research in an important way. She began the semester thinking about vaccine misinformation primarily as a problem of false information being spread by bad actors. The chapter suggests that the illusory truth effect introduces a different kind of problem.

Write an essay of 400–500 words addressing the following: What does the illusory truth effect add to our understanding of why vaccine misinformation has been so persistent despite extensive scientific correction? Your essay should:

• Explain the specific role of repetition in building the apparent credibility of the vaccine-autism claim
• Explain why the scientific correction — the retraction, the large-scale epidemiological studies, the loss of Wakefield's license — was insufficient to reverse the belief buildup for many audiences
• Apply the "prevent, don't just correct" principle to this specific case: what would inoculation against the vaccine-autism claim look like, and when would it need to be delivered to be most effective?
• Reflect on whether the illusory truth mechanism makes vaccine misinformation a fundamentally different kind of problem than a problem that could be solved by providing accurate information more effectively

Answer key for Parts A and B available in Appendix B: Answers to Selected Exercises.