PSY BEH 11B Lecture Notes - Lecture 9: Availability Heuristic, Stomach Cancer, Cognitive Load
10 Nov 2015
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Availability heuristic: estimate frequency or probability by the ease with which instances or associations could be brought to mind, because we don"t have the capacity to remember everything; remember a few, forget the others. Results: traffic accident vs. stomach cancer, ratio of newspaper reports on each subject, actual homicide vs. Why use the availability heuristic: availability is based on fundamental aspect of memory search, works well under many circumstances, availability correlates with likelihood of events. Representativeness heuristic: sequence is seen as more representative or similar to prototypical sequence, coin flip, births of boys and girls . Conjunction fallacy: logically incorrect but seems likely because of association to prototypical. Representativeness heuristic: tendency of people to judge probabilities or likelihoods according to how much one thing resembles another, linda is more representative of a feminist bank teller . Just as likely: people can make errors in judging probabilities of sequential events.
