ABSTRACT
Socioeconomic investigations often relate to certain personal features that people wish to hide from others. In comprehensive inquiries, detailed questionnaires include numerous items. Open or direct queries often fail to yield reliable data on such confidential aspects of human life. Nonresponse or false or evasive responses to attempted direct queries about such private matters are so pronounced in practice that it is difficult to measure and control their effects to make an effective use of the acquired data from samples to reach a correct and fair conclusion about populations. Randomized response (RR) survey techniques introduced by Warner provide such an alternative to meeting the twin objectives of generating enough reliable data to yield fruitful inference and creating a feeling among respondents that their privacy is protecteddespite their truthful replies to cleverly designed questions which do not reveal individual identities in the course of the survey.
