Abstract:
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Probability samples are usually selected from a fixed sample frame, which is a close facsimile of the target population, and the probability of selection can be easily quantified. The sample design is necessarily more complicated when the sample frame is not fixed, but changes over time. In this paper, we describe an adaptive sample design for a target population that are members of a disabled population who had successful work experience. The highest priority in this design is to minimize the length of time between the interview date and the period of successful work. We describe a design that was intended to do this, while at the same time accommodating the changing frame.
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