Measuring concentration: Sampling design issues,as illustrated by the case of perfectly stratified samples |
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| Authors: | R. Rousseau |
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| Affiliation: | (1) Katholieke Industriële Hogeschool West-Vlaanderen, Zeedijk 101, B-8400 Oostende, (Belgium);(2) Speciale Licentie Informatie- en Bibliotheekwetenschap, University of Antwerp (UIA), Universiteitsplein 1, B-2610 Wilrijk, (Belgium) |
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| Abstract: | Using the artificial example of perfectly stratified samples, we have shown the effect different sampling designs have on the determination of concentration values. More concretely, we have studied the following four cases: sampling of items in the case the number of sources is known (we have further considered the cases when there are  many items in every source and when this is not so); sampling of items in the case the number of sources is unknown, and finally, sampling of sources. |
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