{"pk":28836,"title":"Shift of probability weighting by joint and separate evaluations:Analyses of cognitive processesbased on behavioral experiment and cognitive modeling","subtitle":null,"abstract":"We examined whether probability weighting in decisions madeunder risk changed depending on the difference in evaluationmethods. In particular, we focused on two methods, joint eval-uation (JE) and separate evaluation (SE). We conducted a be-havioral experiment and found that participants put more prob-ability weight on small probability when using the SE methodthan when using JE, and that for large probabilities, the inversewas observed (i.e., participants put more weight in JE). We an-alyzed these results using a cognitive model and found that par-ticipants’ subjective value of money does not change owing todifferences in evaluation methods. However, beliefs concern-ing uncertain events shifted depending on evaluation methods,which led to the differences in probability weight. In this paper,we also discuss psychological mechanisms that produce differ-ent judgments or evaluations between SE and JE.","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[{"word":"probability weight; separate evaluation; joint eval-uation; computer simulation; cognitive model of decision mak-ing"}],"section":"Papers with Poster Presentations","is_remote":true,"remote_url":"https://escholarship.org/uc/item/5fb4d74p","frozenauthors":[{"first_name":"Yutaro","middle_name":"","last_name":"Onuki","name_suffix":"","institution":"The University of Tokyo","department":""},{"first_name":"Hidehito","middle_name":"","last_name":"Honda","name_suffix":"","institution":"Yasuda Women’s University","department":""},{"first_name":"Toshihiko","middle_name":"","last_name":"Matsuka","name_suffix":"","institution":"Chiba University","department":""},{"first_name":"Kazuhiro","middle_name":"","last_name":"Ueda","name_suffix":"","institution":"The University of Tokyo","department":""}],"date_submitted":null,"date_accepted":null,"date_published":"2019-01-01T18:00:00Z","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/28836/galley/18707/download/"}]}