{"api_version": 1, "episode_id": "ep_the_rest_is_science_70f1194b864f", "title": "The Reasoning Test Psychologists Still Can't Explain", "podcast": "The Rest Is Science", "podcast_slug": "the_rest_is_science", "category": "science", "publish_date": "2026-04-20T23:05:00+00:00", "audio_url": "https://pdst.fm/e/traffic.megaphone.fm/GLT2805053573.mp3?updated=1776704549", "source_link": "https://www.goalhanger.com", "cover_image_url": "https://megaphone.imgix.net/podcasts/0d68e376-bbe6-11f0-9c0a-3f76ef8f3285/image/f0a6eaea773ff5c3e5c018463ac5627d.jpg?ixlib=rails-4.3.1&max-w=3000&max-h=3000&fit=crop&auto=format,compress", "summary": "The Wasson selection task, a reasoning test developed in 1966, reveals that only about 4% of participants can correctly identify the necessary cards to validate a conditional rule. This test has been extensively studied, highlighting the complexities of human reasoning and how context can significantly influence performance. The episode also discusses variations of the test that demonstrate how framing can lead to different outcomes in reasoning tasks.", "key_takeaways": ["The Wasson selection task is one of the most researched problems in the psychology of reasoning, with a low success rate among participants.", "Context and framing can drastically change how people approach reasoning tasks, as shown by variations of the original test.", "Understanding the psychology behind reasoning tests can provide insights into human cognition and decision-making processes."], "best_for": ["curious generalists"], "why_listen": "Listeners will gain a deeper understanding of the complexities of human reasoning and the factors that influence our decision-making processes.", "verdict": "must_listen", "guests": [], "entities": {"people": [{"name": "Peter Cathcart Wasson", "mentions": 4}, {"name": "Mercier", "mentions": 1}, {"name": "Spurber", "mentions": 1}, {"name": "Hank", "mentions": 1}, {"name": "Michael Stevens", "mentions": 1}, {"name": "Hannah Fry", "mentions": 1}], "places": [{"name": "The UK", "mentions": 1}], "products": [{"name": "Copilot", "mentions": 1}], "companies": [{"name": "Cancer Research UK", "mentions": 2}, {"name": "Indeed", "mentions": 1}, {"name": "Microsoft", "mentions": 1}]}, "quotes": [{"text": "This is a reasoning test, a very simple single question that involves four cards that was devised in 1966 by Peter Cathcart Wasson.", "speaker": "Michael Stevens"}, {"text": "In Wasson's original test, only ten percent of people got it right.", "speaker": "Michael Stevens"}, {"text": "It's the exact same answer as the one before, the first and the last card, except it's just so much faster to get to the conclusion.", "speaker": "Hannah Fry"}], "chapters": [{"title": "Introduction to the Reasoning Test", "summary": "Michael and Hannah introduce the Wasson selection task and its significance in the study of human reasoning."}, {"title": "The Original Wasson Test", "summary": "They explain the original reasoning test and its historical context, highlighting its low success rate."}, {"title": "Understanding the Test Mechanics", "summary": "The hosts discuss the mechanics of the test, including the cards and the rule to be evaluated."}, {"title": "Common Misconceptions", "summary": "Hannah and Michael explore common pitfalls and misconceptions people have when attempting the test."}, {"title": "A Different Version of the Test", "summary": "They present a variation of the test involving ages and drinking rules, demonstrating the same reasoning principles."}, {"title": "Conclusion and Audience Engagement", "summary": "The episode wraps up with a call for audience questions and comments, reinforcing the test's intriguing nature."}], "overall_score": 65.0, "score_breakdown": {"clarity": 75.0, "originality": 65.0, "hype_penalty": 3.0, "actionability": 50.0, "technical_depth": 60.0, "information_density": 70.0}, "score_evidence": {"clarity": "This is a reasoning test, a very simple single question that involves four cards.", "originality": "This is a reasoning test, a very simple single question that involves four cards that was devised in 1966 by Peter Cathcart Wasson.", "hype_penalty": "This has been called the most intensely researched single problem in the history of reasoning.", "actionability": "Which ones will you need to turn over to judge whether this rule is true?", "technical_depth": "This is a reasoning test, a very simple single question that involves four cards.", "information_density": "In Wasson's original test, only ten percent of people got it right."}, "score_reasoning": {"clarity": "The discussion is mostly clear but occasionally repetitive and lacks concise structure.", "originality": "The episode presents a detailed exploration of the Wasson selection task, a specific psychological test, which is less commonly discussed in recent peer claims.", "hype_penalty": "There is some excitement about the test's significance, but it is mostly grounded in research.", "actionability": "While the test is described, there are no specific frameworks or actionable steps provided for listeners.", "technical_depth": "While the episode touches on psychological reasoning, it lacks deeper exploration of the underlying theories or methodologies.", "information_density": "The episode discusses the Wasson selection task and its historical significance, providing specific data on its difficulty."}, "scoring_confidence": 0.9, "transcript_available": true, "transcript_chars": 57450, "transcript_provider": "deepgram"}