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Peer reviewedSpencer, Bruce D. – Journal of Educational Measurement, 1983
Because test scores are ordinal not cordinal attributes, the average test score often is a misleading way to summarize the scores of a group of individuals. Similarly, correlation coefficients may be misleading summary measures of association between test scores. Proper, readily interpretable, summary statistics are developed from a theory of…
Descriptors: Correlation, Measurement Techniques, Scores, Statistical Analysis
Peer reviewedStenner, A. Jackson; And Others – Journal of Educational Measurement, 1983
In an attempt to restore the symmetry and balance between the study of person and item variation, this paper presents a novel methodology construct specification equations, which allows one to ascertain from the lawful behavior of items what an instrument is measuring. (Author/PN)
Descriptors: Measurement Objectives, Measurement Techniques, Research Methodology, Test Construction
Peer reviewedLord, Frederic M. – Journal of Educational Measurement, 1984
Four methods are outlined for estimating or approximating from a single test administration the standard error of measurement of number-right test score at specified ability levels or cutting scores. The methods are illustrated and compared on one set of real test data. (Author)
Descriptors: Academic Ability, Cutting Scores, Error of Measurement, Scoring Formulas
