ABSTRACT
This chapter reviews a number of psychological experiments on reasoning. They come from two related but different research traditions. Experiments two and three concern the "Wason Selection Task", reputedly "the most intensively researched single problem in the history of the psychology of reasoning". These experiments attempt to examine the circumstances in which people's reasoning follows the canons of deductive logic. Experiments one and four come from the work of Daniel Kahneman and Amos Tversky. Their research focuses more on explaining why people reason the way that they do reason, particularly under conditions of uncertainty. These experiments serve, by way of contrast, as another introduction to the own studies of skill and reasoning.
