The randomized response (RR) technique introduced by Warner (1965) was found to be an effective method for reducing answer bias and ensuring better respondent cooperation in estimating the proportion of people in a community bearing a sensitive attribute. Chaudhuri (2001a, 2001b, 2002, 2003) extended Warner’s method and several other well-known RR devices to complex surveys adopting a varying probability sampling design. Kim and Warde (2004) proposed an RR model assuming that the sample is selected with simple random sampling (SRS) with replacement (SRSWR). Here, the method of estimation is presented when sample is chosen with varying selection probabilities and Kim and Warde’s RR procedure is applied for estimating a sensitive proportion. Also illustrated is a numerical example that unequal probability sampling performs better than SRS.
"Kim And Warde’s Mixed Randomized Response Technique For Complex Surveys,"
Journal of Modern Applied Statistical Methods:
2, Article 19.
Available at: http://digitalcommons.wayne.edu/jmasm/vol4/iss2/19