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Cognitive effort of voters under three different voting methods - an experimental study

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MALAWSKI M., PRZYBYSZEWSKI K., SOSNOWSKA H.
Operations Research and Decisions
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2010
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vol. 20
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issue 3-4
69-79
EN
This paper deals with the comparison of the processes of decision making by voters under the approval voting rule (in two variants: classical and categorization) and majority rule. Under the majority rule, each voter chooses a single alternative. Under approval voting, they can vote for as many alternatives as they wish. Under the categorization method, they divide alternatives into three groups: approvable, not approvable and neutral. We conducted a process tracing experiment with respondents choosing an office manager from 13 candidates characterized by 14 attributes. The process of collecting information on candidates from the data presented on the screen was observed by a coordinator. For this experiment, the concept of cognitive effort was defined as the quantity of information gathered. The cognitive effort made under the three methods was compared. The highest cognitive effort was observed in the case of the categorization method and the lowest in the case of approval voting.
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Cognitive properties of approval voting. An experimental approach

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PRZYBYSZEWSKI K., RZESKA M., SOSNOWSKA H.
Operations Research and Decisions
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2011
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vol. 21
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issue 3-4
20-31
EN
The paper summarizes two series of experiments demonstrating the cognitive properties of approval voting. The former series is devoted to mental processes induced in decision makers who use the method of approval voting. Based on cognitive effort, the use of choice strategies is presented in this paper. The observations of respondents show that most of them use relatively effortless strategy of eliminating alternatives and attributes. Few respondents use more sophisticated methods. The other series of experiments analyses the number of alternatives chosen in approval voting. It appears that the average number is not constant, even for similar votes but it depends on the subject of voting. The number of chosen alternatives and the subjective significance of the scope of voting are negatively or positively correlated in the case of special votes. The analyzed experiments show that the cognitive properties of approval voting have a diverse structure.
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