Accession Number : ADA137031

Title :   Learning in a Probabilistic Environment: A New Approach, and Some Preliminary Findings.

Descriptive Note : Technical rept.,

Corporate Author : CHICAGO UNIV IL CENTER FOR DECISION RESEARCH

Personal Author(s) : Klayman,J

PDF Url : ADA137031

Report Date : May 1983

Pagination or Media Count : 29

Abstract : Many studies of 'probability learning' have led to the conclusion that human learners cannot find the 'rule' amidst the 'noise' (Brehmer, 1980). It is hypothesized that under more natural conditions, learners do develop rules which are probabilistically predictive, and improve chiefly through the addition of new predictive variables. The present study represents natural learning situations by including: instructions and rewards that emphasize gradual development of understanding, rather than discovery of the right rule; and a large number of cues, which must be discovered, rather than a few cues explicitly given. Results with 12 college-student subjects indicate significant learning in a computer-displayed task, over approximately 10 hours of experience. Learning was incremental, and was accompanied by the addition of valid factors to existing rules. These results contrast with findings that people fail to utilize information effectively in probabilistic situations. Earlier studies do not, however, model situations in which learning requires the discovery and validation of predictive cues, processes critical for the development of real-world expertise.

Descriptors :   *Learning, *Performance(Human), Behavior, Judgement(Psychology), Decision making, Response, Reaction(Psychology), Cues(Stimuli), Memory(Psychology), Cognition, Computer aided instruction, Attitudes(Psychology), Adjustment(Psychology), Variables, Predictions, Probability, Feedback

Subject Categories : Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE