A survey technique for procuring honest responses

Abstract

This paper considers the problem of unbiased estimation for the proportion of sensitive characteristics. A survey technique without any use of randomization devices is proposed, which is constructed by using an unrelated, innocuous characteristic together with random group strategy. The proposed technique contributes in higher estimation efficiency and better protection for personal privacy, which results in a greater degree of respondents' cooperation. And it may be operated through cheaper approaches such that the survey costs would be reduced.