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Primary and Secondary Units

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Abstract

In adaptive sampling, the sampling units can sometimes be divided into primary and secondary units. After a sample of primary units is taken, adaptive cluster sampling can be carried out within each primary unit selected using either a sample or all of its secondary units. Primary units can be a variety of shapes such as strip transects or Latin squares. Two procedures are possible depending on whether adaptive clusters are allowed to cross primary unit boundaries or not. Stratified sampling is a special case in which all the primary units or strata are sampled. Two stage-sampling can be used for carrying out a pilot survey to determine how to design a full-scale survey.

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Correspondence to George A. F. Seber .

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Seber, G.A.F., Salehi, M.M. (2012). Primary and Secondary Units. In: Adaptive Sampling Designs. SpringerBriefs in Statistics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-33657-7_4

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