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)

This paper is an extended series of appendices to the report "Exploring the T.R.Q.: An Assessment of the Effectiveness of the Teachers' Rating Questionnaire," Report Number 123. It should be most useful to those familiar with multiple regression analysis and factor analysis and wishing a more complex record of the statistical procedures…

A diagnostic test in English as a second language should be a series of miniature tests on specific problems. Subscores in each area should be considered rather than a total score. The results should be used to probe mastery in an area rather than provide the means for comparing one student against another. The statistical reliability of the…