ABSTRACT
Except when stated otherwise, we assume truthful reporting in randomized queries. In RR surveys, although an individual respondent is not asked to divulge his or her true standing in respect to a sensitive characteristic, the person does, nevertheless, run certain risks of disclosures. It is possible that among the respondents there may be intelligent and knowledgeable people well equipped intellectually to analyze and weigh the hazards in giving out secrets. Naturally, they must be convinced that their privacy is well guarded before they will be persuaded to make available damaging and incriminating documents. So protection of confidentiality is an important ingredient of RR theory and practice and we should dwell on this issue.
