standardization group
a sample used to establish reliable norms for the population that it represents. This is done by analyzing the results of the test administered to the sample and ascertaining the average performance level and the relative frequency of each deviation from the mean. The normal distribution thus created is then used for comparison with any specific future test score. For example, the standardization group for a new test of computer literacy in older adults might comprise a large set of test takers above age 60 whose characteristics (e.g., sex, ethnicity, race) reproduce those of the larger population for whom the test is intended. The arrangement of scores obtained by such a standardization group subsequently provides a point of comparison for the scores of other older adults who take the test. Also called norm group; standardization sample.