Randomized Response: A Survey Technique for Eliminating Evasive Answer Bias
作者:
StanleyL. Warner,
期刊:
Journal of the American Statistical Association
(Taylor Available online 1965)
卷期:
Volume 60,
issue 309
页码: 63-69
ISSN:0162-1459
年代: 1965
DOI:10.1080/01621459.1965.10480775
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
For various reasons individuals in a sample survey may prefer not to confide to the interviewer the correct answers to certain questions. In such cases the individuals may elect not to reply at all or to reply with incorrect answers. The resulting evasive answer bias is ordinarily difficult to assess. In this paper it is argued that such bias is potentially removable through allowing the interviewee to maintain privacy through the device of randomizing his response. A randomized response method for estimating a population proportion is presented as an example. Unbiased maximum likelihood estimates are obtained and their mean square errors are compared with the mean square errors of conventional estimates under various assumptions about the underlying population.
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