STRUCTURAL DETERMINANTS OF CUE UTILIZATION IN JUDGMENT.
Final rept. 1 Apr 68-31 Mar 69,
OREGON RESEARCH INST EUGENE
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The general problem of concern here is that of understanding the process by which a decision maker combines information of varying relevance from the several cue dimensions of a stimulus object to arrive at a quantitative judgment of that object or a choice among several objects. Efforts have been focused on the following three specific projects. Study 1 Consistency of Choice Between Equally-Valued Alternatives. This study critically evaluates the commonly accepted notion that choices between two equally-valued alternatives are randomly determined. Specific attention is given to Shepards hypothesis that a decision maker alters his relative weighting of dimensions in order to resolve conflict and make his choice. Study 2 Nonlinear Cue Utilization in One-Cue and Two-Cue Tasks. This experiment tests the hypothesis that the functional relationship between a cue dimension and judgments based upon that dimension will become simpler more linear when that cue has to be combined with other cues. Study 3 Learning to Use Cues that Have Positive and Negative Validity. This study investigates Ss ability to learn to use a cue as a function of whether the cue is positively or negatively correlated with the criterion dimension. Learning is related to the hypothesis that greater compatibility numerical similarity between a cue and the criterion will enhance Ss ability to learn to use that cue. A detailed account of each of these studies is given in this report.