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Aiken, Lewis R. – Educational and Psychological Measurement, 1983
A procedure and a computing diagram for assigning score boundaries to grading categories on classroom tests are described. The procedure takes both the median ability level of the class and the test performance of the class relative to that of other classes into account. (Author)
Descriptors: Grades (Scholastic), Grading, Scores, Scoring
Peer reviewed Peer reviewed
Smithson, Michael – Educational and Psychological Measurement, 2001
Provides a practical introduction to methods of constructing confidence intervals for multiple and partial "R" squared and related parameters in multiple regression models based on noncentral distributions. Illustrates software use (e.g. the Statistical Package for Social Studies) for confidence intervals and discusses measures of effect…
Descriptors: Effect Size, Regression (Statistics), Statistical Distributions