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Norman, Rebecca L.; Buckendahl, Chad W. – Educational Measurement: Issues and Practice, 2008
Many educational testing programs report examinee performance at more than two levels of proficiency. Whether these assessments have the capacity to support these multiple inferences, though, is a topic that has not been widely discussed. This study proposes a method for evaluating the minimum number of measurement opportunities for reporting…
Descriptors: Testing Programs, Student Evaluation, Educational Testing, Mathematics Achievement
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Zwick, Rebecca – Educational Measurement: Issues and Practice, 1991
Item parameter estimates derived through item response theory methods have been considered relatively robust to changes in item position and context, but the anomaly in reading scores from the 1986 National Assessment of Educational Progress (NAEP) illustrates problems with common population equating procedures when there are test form changes.…
Descriptors: Achievement Tests, Context Effect, Equated Scores, Estimation (Mathematics)