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The Approach of Randomized Response Models (RRM) is quite new and has had been used in sensitive surveys to procure honest responses from the survey respondents.The RRM are used in the estimation of mean(proportion) of a sensitive quantitative(qualitative) variables. These models are based on the premise of random selection of the questions by the respondents rather than direct sampling. The respondents are provided a list of questions to select one of them through a given randomization device and are requested to report according to their actual status and the question selected. These models...

Sample surveys on human populations have established the fact that refusal to respond and intended giving of incorrect answers are two main sources of non-sampling error. The bias produced by these two sources of error is sometimes large enough to make the sample estimates seriously misleading. This problem becomes more serious when respondents are questioned about sensitive matters. A procedure was introduced by Warner (1965) to diminish bias due to deliberately misleading responses. This procedure enables the respondents to provide truthful information while protecting their privacy. We...