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    Optimal data selection in the reduced array selection task (RAST)

    Oaksford, Mike and Chater, N. and Grainger, B. and Larkin, J. (1997) Optimal data selection in the reduced array selection task (RAST). Journal of Experimental Psychology: Learning, Memory, and Cognition 23 (2), pp. 441-458. ISSN 0278-7393.

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    The predictions of M. Oaksford and N. Chater's (see record 1995-08271-001) optimal data selection (ODS) model for the reduced array selection task (RAST) were tested in 4 experiments. Participants tested a hypothesis, if p then q, by selecting cards showing q or not q instances. In Experiment 1, where selections were made from different sized stacks of q and not q cards, as P(q) increased, not q card selections rose, and q card selections fell, as predicted. Experiment 2 controlled for the possibility that stack height influenced responses; these results were also consistent with ODS. Experiment 3, which controlled further for this possibility, replicated Experiment 1. Experiment 4 addressed a final issue concerning the medium P(q) condition by concentrating on initial card selections; the results were again consistent with ODS. Although generally consistent with the ODS model, these experiments also suggest some interesting revisions.


    Item Type: Article
    School: Birkbeck Faculties and Schools > Faculty of Science > School of Psychological Sciences
    Depositing User: Administrator
    Date Deposited: 15 Sep 2016 17:00
    Last Modified: 02 Aug 2023 17:26


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