From: UFO UpDates - Toronto <post.nul> Date: Wed, 23 Nov 2011 18:22:08 -0500 Archived: Wed, 23 Nov 2011 18:22:08 -0500 Subject: How People Are Fooled By Evidence Source: ScientificAmerican.Com http://tinyurl.com/d7jey46 November 22, 2011 How People Are Fooled By Evidence The 'one at a time' effect changes how facts are interpreted By Nicole Jardine Rationality is the crowning achievement of our species. The ability to use evidence is true the cornerstone of science, medicine, and our legal system. We use rational methods, too, in daily life =96 we assess an applicant=92s resume, a child=92s IQ, or the mileage of a used car to predict the likelihood of good performance later on. Given that we often use information to make decisions both large and small, how good are we at assessing evidence? There is a line of psychological research that studies precisely this, by measuring how accurate we are at making probability judgments. One way to study this is to control the nature of information itself and see whether people are accurate judges of its strength. Interestingly, people=92s responses tend to be conservative: they are less sure of their conclusion than the evidence justifies. Yet we are not just affected by the strength of the evidence, but by how it is presented. A recent study by Jennifer Whitman and Todd Woodward found that when pieces of evidence are doled out one at a time, instead of being shown all at once, people conclude that the evidence is stronger. [More at site... thanks to 'The Norm' for the lead ] Listen to 'Strange Days... Indeed' - The PodCast At: http://www.virtuallystrange.net/ufo/sdi/program/ These contents above are copyright of the author and UFO UpDates - Toronto. They may not be reproduced without the express permission of both parties and are intended for educational use only.
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