Information search and decision making: The effects of information displays |
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| Affiliation: | 1. Department of Health Sciences, University of Florence, Florence, Italy;2. Department of Psychiatry & Psychology, University of Maastricht, Maastricht, the Netherlands;3. Addiction Unit, Verona University Hospital, piazzale Aristide Stefani 1, 37126 Verona, Italy;1. Department of Radiology, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland;2. Signal Processing Laboratory (LTS5), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland;3. Office Médico-Pédagogique, Department of Psychiatry, University of Geneva, Geneva, Switzerland;4. Stanford Cognitive and Systems Neuroscience Laboratory, Stanford University School of Medicine, Palo Alto, CA, USA;5. Service Universitaire de Psychiatrie de l''Enfant et de l''Adolescent (SUPEA), Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland;1. Maternal-Fetal Medicine Division (Placenta Clinic), Department of Obstetrics and Gynaecology, Mount Sinai Hospital, University of Toronto, Toronto ON;2. Department of Obstetrics and Gynaecology, St. Michael’s Hospital, University of Toronto, Toronto ON;3. Department of Pediatrics, Mount Sinai Hospital, University of Toronto, Toronto ON |
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| Abstract: | Information display boards may be used to test assumptions about underlying cognitive processes in decision situations. However, the question may be raised whether information processing in a complex decision situation is indepemdent of the structure of the information display board used. In a study employing 96 subjects, the design of the information display board, the number of alternatives, and the number of attributes were varied. Twelve groups of eight subjects were presented with one hypothetical choice among riskless multiattribute decision alternatives (apartments). Results showed that information search patterns were not influenced by the design of the information display board, but that the relative number of attributes included in the decision process was. The number of available attributes appeared to be the strongest determinant of information search patterns. A higher number of attributes induced information search patterns consistent with the noncompensatory conjunctive decision rule. It is suggested that the decision situation employed, which forced the decision maker to remember each piece of information acquired, underlies the difference between the results in the present study and previous findings. |
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