Nontechnical survey helps improve ability to judge statistical evidence and to make better-informed decisions. Discusses common pitfalls: unrealistic estimates, improper comparisons, premature conclusions, and faulty thinking about probability. 1974 edition.

There is a logical flaw in the statistical methods used across experimental science. This fault is not a minor academic quibble: it underlies a reproducibility crisis now threatening entire disciplines. In an increasingly statistics-reliant society, this same deeply rooted error shapes decisions in medicine, law, and public policy with profound consequences. The foundation of the problem is a misunderstanding of probability and its role in making inferences from observations. Aubrey Clayton traces the history of how statistics went astray, beginning with the groundbreaking work of the seventeenth-century mathematician Jacob Bernoulli and winding through gambling, astronomy, and genetics. Clayton recounts the feuds among rival schools of statistics, exploring the surprisingly human problems that gave rise to the discipline and the all-too-human shortcomings that derailed it. He highlights how influential nineteenth- and twentieth-century figures developed a statistical methodology they claimed was purely objective in order to silence critics of their political agendas, including eugenics. Clayton provides a clear account of the mathematics and logic of probability, conveying complex concepts accessibly for readers interested in the statistical methods that frame our understanding of the world. He contends that we need to take a Bayesian approach—that is, to incorporate prior knowledge when reasoning with incomplete information—in order to resolve the crisis. Ranging across math, philosophy, and culture, Bernoulli’s Fallacy explains why something has gone wrong with how we use data—and how to fix it.

The Fallacy Detective has been the best selling text for teaching logical fallacies and introduction to logic for over 15 years. "Can learning logic be fun? With The Fallacy Detective it appears that it can be. I thoroughly enjoyed this book and would recommend it to anyone who wants to improve his reasoning skills."--Tim Challies, curriculum reviewer "Cartoon and comic illustrations, humorous examples, and a very reader-friendly writing style make this the sort of course students will enjoy."--Cathy Duffy, homeschool curriculum reviewer "I really like The Fallacy Detective because it has funny cartoons, silly stories, and teaches you a lot!"--11 Year Old What is a fallacy? A fallacy is an error in logic a place where someone has made a mistake in his thinking. This is a handy book for learning to spot common errors in reasoning. - For ages twelve through adult. - Fun to use -- learn skills you can use right away. - Peanuts, Dilbert, and Calvin and Hobbes cartoons. - Includes The Fallacy Detective Game. - Exercises with answer key.

Thomas Sowell “both surprises and overturns received wisdom” in this indispensable examination of widespread economic fallacies (The Economist) Economic Facts and Fallacies exposes some of the most popular fallacies about economic issues-and does so in a lively manner and without requiring any prior knowledge of economics by the reader. These include many beliefs widely disseminated in the media and by politicians, such as mistaken ideas about urban problems, income differences, male-female economic differences, as well as economics fallacies about academia, about race, and about Third World countries. One of the themes of Economic Facts and Fallacies is that fallacies are not simply crazy ideas but in fact have a certain plausibility that gives them their staying power-and makes careful examination of their flaws both necessary and important, as well as sometimes humorous. Written in the easy-to-follow style of the author's Basic Economics, this latest book is able to go into greater depth, with real world examples, on specific issues.