Key points are not available for this paper at this time.
This chapter contains sections titled: Methods of Indirect Estimation The Item Count Method The National Household Seroprevalence Survey Pretest Preliminary Testing: Focus Groups and Individual Cognitive Interviews Controlled Experiments Final Version of Item Count Used in the NHSS Pretest Results from the NHSS Pretest Conclusions The Simplest form of the Item Count/Paired Estimator Showcard with Sample Item
Droitcour et al. (Tue,) studied this question.