PSYB57H3 Chapter 11: Memory and Cognition Chapter 11.doc

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Coping with information overload, though often useful can lead to error and irrationality. Basic concepts of probability: the most difficult decisions and plans are made under conditions of uncertainty, probability measurement of a degree of uncertainty expressed as a number between 0 and. 2: ross and sicoly studied husband and wives and found that either spouse were likely to say that they had the greater responsibility. They explained these findings in terms of the availability heuristic. Our own efforts and behaviour are more obvious than that of others: availability can be both an efficient and effective heuristic. The idea is that people expect small samples to resemble in every respect the populations from which they are drawn. Small samples are less reliable and more likely to deviate from the population: sedlmeier and gigerenzer argued that people sometimes do have correct intuitions about sample size, but often don"t.