2010 Fiscal Year Final Research Report
How to Measure Political Concepts Using Public Opinion Surveys : Learning from Cognitive Science
| Project/Area Number |
20530123
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Politics
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| Research Institution | Doshisha University |
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Principal Investigator |
NISHIZAWA Yoshitaka Doshisha University, 法学部, 教授 (40218152)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 政治学 / 世論調査 / 認知科学 / 政治的信頼 / ランダマイゼーション |
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| Research Abstract |
A use of "randomization" of question items in a questionnaire has become a standard practice since the introduction of computer-assisted public opinion surveys. Randomi-zation "eliminates" the ordering effect in aggregate statistics. Because of an "anchoring effect," however, it introduces unexpected, unreliable nature when the data are analyzed at an individual level. Using web-based surveys, I have tested several ideas to remedy the problems. My conclusions are : 1) it is not easy to eliminate anchoring effect by way of altering question formats, and 2) a use of "randomization" should be selective, and not automatic.
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