École d'été | 28 mai 2026: How reasoning impacts beliefs, attitudes par Gordon Pennycook

Value of the Information & Strength of the Argument

The talk provides valuable insights into the role of reasoning in belief formation, supported by a wealth of empirical evidence from the speaker’s own research and that of others. The argumentation is coherent and well-structured, systematically contrasting the speaker’s perspective with alternative views. The speaker effectively uses examples and data to illustrate his points, making a compelling case for the importance of reflective thinking. However, the presentation is somewhat one-sided, as it focuses primarily on supporting evidence and does not deeply engage with potential counterarguments or limitations of the research.

Scientific Rigor, Source Quality, Title Accuracy

The talk demonstrates scientific rigor through references to specific studies, theories, and researchers (e.g., Kahneman, Haidt, Kahan). The speaker clearly distinguishes between his own findings and those of others. The title accurately reflects the content, which is a focused discussion on how reasoning impacts beliefs. The talk is based on a substantial body of peer-reviewed research, though it is presented in a conference setting and may not include all methodological details.

The title accurately reflects the content, which focuses on how reasoning (analytic thinking) influences beliefs and attitudes.

8/10

The talk is based on extensive peer-reviewed research by the speaker and colleagues, with references to specific studies and established theories. However, it is a conference presentation, not a formal publication, and some claims are presented without full methodological detail.

Markers derived by PSI from the transcript: the creator did not define chapters.

• 02:00Introduction: three ways to start the talk, pitch for placing reasoning at the center of understanding mistakes.
• 05:00Start number two: outline of the speaker's perspective on reasoning errors, emphasizing over-reliance on intuition and lack of reflection.
• 08:00Start number three: personal story about growing up in rural Saskatchewan and interest in beliefs.
• 15:00Discussion of dual-process theory and the correction that intuitions are often right, but sometimes need reflection.
• 20:00Contrast with social intuitionist model (Haidt) and the claim that reasoning is rarely corrective.
• 25:00Presentation of the bat-and-ball problem and its use as a measure of analytic thinking.
• 30:00Evidence that reflective thinking is associated with lower belief in epistemically suspect beliefs (e.g., superstition, alternative medicine).
• 35:00Study on religious disbelief and the role of reflection in belief change.
• 40:00Social media study: reflective thinkers share higher-quality news sources.
• 45:00Discussion of identity-protective cognition (Kahan) and the claim that reasoning can backfire.
• 50:00Climate change belief patterns and the role of reasoning, with caveats about disinformation.

• Cognitive Reflection Test (CRT) — Mentioned as a measure of analytic thinking used in studies.
• Haidt's Social Intuitionist Model — Discussed as a contrasting perspective on reasoning.
• Kahan's Identity-Protective Cognition — Discussed as a theory that reasoning can facilitate bias.
• George Miller's 'Psychology as a Means of Promoting Human Welfare' — Referenced in the introduction to motivate the application of psychology.

• Pennycook, G., & Rand, D. G. (2019). Lazy, not biased: Susceptibility to partisan fake news is better explained by lack of reasoning than by motivated reasoning. — Supports the claim that reasoning errors are often due to lack of reflection rather than motivated reasoning.
• Pennycook, G., et al. (2015). On the reception and detection of pseudo-profound bullshit. — Referenced in the talk as evidence that reflective thinking reduces belief in pseudo-profound statements.

• Kahan, D. M. (2017). The expressive rationality of inaccurate perceptions. — Presents the identity-protective cognition perspective, which argues that reasoning can facilitate bias, contrary to the speaker's view.