Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2008: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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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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