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Estimation of Defect Rate from the Screening Test - the case of unknown sensitivity and specificity -  

김태규 (한남대학교 정보통계학과)
Publication Information
Journal of Korean Society for Quality Management / v.30, no.1, 2002 , pp. 144-151 More about this Journal
Abstract
Consider the problem of estimating the confidence interval of defect rate of a specified population through a screening test. Relationship between defect rate of the population and sensitivity and specificity of the screening test is discussed. More general statistical problem is introduced with the assumption of unknown imperfect specificity. An improved version of Hogan & Gladden(1978)'s estimator is proposed and discussed. Simulation studies are performed to compare the efficiency of the proposed estimator with current estimators.
Keywords
Screening Test; Sensitivity; Specificity;
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  • Reference
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