Psychophysical judgments of probabilistic stimulus sequencies.
- 1 October 1961
- journal article
- Published by American Psychological Association (APA) in Journal of Experimental Psychology
- Vol. 62 (4) , 416-422
- https://doi.org/10.1037/h0042481
Abstract
1 of 2 lights was presented in a sequence of 50 stimulus presentations. Stimulus probability was manipulated by varying the relative number of each of the 2 lights in the sequence. Judgments made at the end of each series of 50 lights regarding the estimated occurrence of 1 light provided a response measure of estimated probability. 9 probability conditions were employed. Ss tended to overestimate probabilities from .60 to .90 and underestimate probabilities from .10 to .40. These and other results are discussed in relation to probability learning and decision making. (PsycINFO Database Record (c) 2006 APA, all rights reserved)Keywords
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