Analyzing information search patterns to test the use of a two-phased decision strategy

This study compares three procedures, Payne's index, Van Raaij's index and the single Markov model, to test the hypothesis that subjects apply two decision strategies successively in making a choice. The information search patterns were gathered for 72 subjects by means of an information d...

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Bibliographic Details
Published in:Acta psychologica 1992-08, Vol.80 (1), p.213-227
Main Author: Stokmans, Mia
Format: Article
Language:English
Subjects:
Biological and medical sciences
Cognition. Intelligence
Fundamental and applied biological sciences. Psychology
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Reasoning. Problem solving
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Summary:This study compares three procedures, Payne's index, Van Raaij's index and the single Markov model, to test the hypothesis that subjects apply two decision strategies successively in making a choice. The information search patterns were gathered for 72 subjects by means of an information display board. The decision tasks varied in complexity (3, 5, 8 alternatives and 4, 6, 8 attributes). The number of tests which resulted in a significant difference ( p < 0.05) were respectively, six out of eighteen t-tests for Payne's index, fourteen out of eighteen t-tests regarding Van Raaij's index, and eight out of nine Chi-square tests for the single Markov model. The theoretical considerations as well as the results suggest that Payne's index is the least sensitive, and that Van Raaij's index, compared to the Markov model, is less sensitive to detect a difference in strategies used.
ISSN:0001-6918
1873-6297
DOI:10.1016/0001-6918(92)90048-I