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A review of randomized responses procedures: the qualitative variable case

In this paper a review on the results on randomized responses for qualitative variables is presented. It incorporates recently published papers. It tries to fulfill the lack of a review on the theme and aims completing the oeuvre of Chaudhuri, A . & R. Mukerjee. (1988), (Randomized response: theory and techniques, Marcel Dekker, New York).