The Effect of Monetary Inducement on Mailed Questionnaire Response Quality
研究通过邮寄问卷实验发现，25美分金钱激励能显著减少项目遗漏和回答错误，对回答完整性的改善也有一定支持。
A mailed questionnaire study examined the effect of a 25-cent monetary inducement on three components of response quality: item omission, response error, and completeness of answer. The monetary inducement is found to decrease item omission and response error significantly. Some research support is shown for improving completeness of answer.