The calibration for two-phase randomized response estimator

Chang Kyoon Son, Ki Hak Hong, Gi Sung Lee, Jong Min Kim

    Research output: Contribution to journalArticlepeer-review

    1 Scopus citations


    This article presents the calibration procedure of the two-phase randomized response (RR) technique for surveying the sensitive characteristic. When the sampling scheme is two-phase or double sampling, auxiliary information known from the entire population can be used, but the auxiliary information should be information available from both the first and second phases of the sample. If there is auxiliary information available from both the first and second phases, then we can improve the ordinary two-phase RR estimator by incorporating this information in the estimation procedure. In this article, we used the new two-step Newton's method for computing unknown constants in the calibration procedure and compared the efficiency of the proposed estimator through some numerical study.

    Original languageEnglish (US)
    Pages (from-to)992-1012
    Number of pages21
    JournalCommunications in Statistics - Theory and Methods
    Issue number6
    StatePublished - Jan 1 2010


    • Auxiliary information
    • Calibration
    • Generalized regression estimator
    • Randomized response technique
    • Two-phase sampling

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