| 单词 | availability heuristic |
| 释义 | > as lemmasavailability heuristic availability heuristic n. Psychology a cognitive process whereby the probability of an event occurring is judged by the number of instances of it that can readily be brought to mind (often influenced by recent media reporting of such an event), resulting in an overestimate of its frequency or likelihood.The term is used to explain the widespread fear of relatively rare events, such as air crashes and shark attacks, compared to (statistically far more common) occurrences such as car accidents or drowning; also called availability bias (see availability bias n. (b)). ΚΠ 1972 D. Kahneman & A. Tversky in Cognitive Pscyh. 3 452 The availability heuristic is more likely to be employed when events are more naturally thought of in terms of specific occurrences. 1999 Christian Sci. Monitor (Nexis) 15 Nov. (Opinion section) 9 It is normal for people to think that some well-publicized behavior is common when it is in fact rare. This way of thinking is so normal that social psychologists have given it a name: ‘the availability heuristic’. 2015 N.Y. Rev. Bks. 5 Mar. 23/4 This is the ‘availability heuristic’, or mental shortcut, whereby the graphic pictures of the last storm outweigh any statistical analysis of the likelihood of another and produce a disproportionate response. < as lemmas |
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