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DUPLICATE SAMPLE

Statistics Directorate    
French Equivalent: Échantillon doublé

Definition:
A sample collected concurrently, i.e. in the course of the same sample survey under comparable conditions, with a first sample. It acts in much the same way as a replication except that in some cases the only thing which can be replicated is the act of taking a second independent sample.

For example, a second independent sample in a survey will afford additional information on the sampling error but nothing has been replicated in the sense of a repeated experiment beyond the act of selecting a duplicate sample. The act of taking several such samples may be called replicated sampling.

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:
Duplicated sample
Interpenetrating samples (sub samples)

Statistical Theme: Methodological information (metadata)

Created on Thursday, May 23, 2002

Last updated on Monday, April 28, 2003