PSYC 170 Lecture Notes - Lecture 8: Belief Perseverance, Bank Teller, Representativeness Heuristic
Document Summary
Mental shortcuts/rules of thumb: ex: if you ask a question in class and no one answers in 6 seconds, no one is going to answer. Most of the time they"re helpful don"t always have to engage in complicated calculations. Subject to bias: kahneman & tversky: normative decision making how we ought to make decisions, descriptive decision making how are decisions actually made, although intuitions are often correct, they"re also often systematically wrong. People aren"t as logical as they think they are: availability heuristic: frequency based on how easily brought to mind. Assess probability of likelihood of vent at the ease to which it comes to mind. Ex: think of word that start with r vs. having r in third position easier to think of words starting with r, so guess more words start with r (in fact, it"s true heuristics help) Ex: think terrorist attacks are more likely to happen than traffic accidents (unjustified)
