cluster sample


Health Economics

  • (written as Cluster Sample)
    A sample obtained through a two-stage procedure in which the population is divided into mutually exclusive and exhaustive groups from which a random sample of groups is then taken. If all the observations in the selected groups are used, the procedure is termed 'one-stage' cluster sampling; if a sample from the selected groups is taken, the procedure is 'two-stage' cluster sampling.

Information & Library Science

  • noun a method of sampling in statistical analysis, which compares small groups