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CLUSTER SAMPLING

Statistics Directorate    
French Equivalent: Échantillonnage par conglomerats

Definition:
When the basic sampling unit in the population is to be found in groups or clusters, e.g. human beings in households, the sampling is sometimes carried out by selecting a sample of clusters and observing all the members of each selected cluster. This is known as cluster sampling.

Context:
If the elements are closely grouped they are said to be compact. If they are almost equivalent to a geographically compact group from the point of view of investigational convenience they are said to quasi-compact.

Source Publication:
A Dictionary of Statistical Terms, 5th edition, prepared for the International Statistical Institute by F.H.C. Marriott. Published for the International Statistical Institute by Longman Scientific and Technical.

Cross References:
Elementary unit

Statistical Theme: Methodological information (metadata)

Created on Thursday, May 23, 2002

Last updated on Monday, March 03, 2003