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For example, people have long believed that ulcers were caused by stress, due to the representativeness heuristic, when in fact bacteria cause ulcers. [2] In a similar line of thinking, in some alternative medicine beliefs patients have been encouraged to eat organ meat that corresponds to their medical disorder.
The representativeness heuristic is seen when people use categories, for example when deciding whether or not a person is a criminal. An individual thing has a high representativeness for a category if it is very similar to a prototype of that category. When people categorise things on the basis of representativeness, they are using the ...
Gigerenzer & Gaissmaier (2011) state that sub-sets of strategy include heuristics, regression analysis, and Bayesian inference. [14]A heuristic is a strategy that ignores part of the information, with the goal of making decisions more quickly, frugally, and/or accurately than more complex methods (Gigerenzer and Gaissmaier [2011], p. 454; see also Todd et al. [2012], p. 7).
The availability heuristic (also known as the availability bias) is the tendency to overestimate the likelihood of events with greater "availability" in memory, which can be influenced by how recent the memories are or how unusual or emotionally charged they may be. [20] The availability heuristic includes or involves the following:
The heuristic-systematic model of information processing (HSM) is a widely recognized [citation needed] model by Shelly Chaiken that attempts to explain how people receive and process persuasive messages. [1] The model states that individuals can process messages in one of two ways: heuristically or systematically. Systematic processing entails ...
Amos Tversky and Daniel Kahneman first proposed that the gambler's fallacy is a cognitive bias produced by a psychological heuristic called the representativeness heuristic, which states that people evaluate the probability of a certain event by assessing how similar it is to events they have experienced before, and how similar the events ...
[7] For example, the representativeness heuristic is defined as "The tendency to judge the frequency or likelihood" of an occurrence by the extent of which the event "resembles the typical case." [14] The "Linda Problem" illustrates the representativeness heuristic (Tversky & Kahneman, 1983 [15]). Participants were given a description of "Linda ...
representativeness heuristic (the inclination to assign specific attributes to an individual the more he/she matches the prototype of that group). [16] availability heuristic (the inclination to judge the likelihood of something occurring because of the ease of thinking of examples of that event occurring) [9] [page needed] [16]