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Krus, David J.; Ceurvorst, Robert W. – Educational and Psychological Measurement, 1978
An algorithm for updating the means of variances of a norm group after each computer-assisted administration of a test is described. The algorithm does not require storage of the whole data set, and provides for unlimited, continuous expansion of the test norms. (Author)
Descriptors: Computer Assisted Testing, Computer Programs, Norms, Statistical Data