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Download full textForster, Fred; Ingebo, George – 1978
Six monographs on the Rasch model are summarized. The first gives a historical perspective on the application of the Rasch model in the Portland, Oregon, metropolitan area. The remaining papers summarize research on the Rasch model. The research in Monograph II lead to the conclusion that random samples are not needed to calibrate item levels in…
Descriptors: Achievement Tests, Elementary Education, Field Tests, Item Banks
Beaton, Albert E.; And Others – 1988
This report supplies details of the design and data analysis of the 1986 National Assessment of Educational Progress (NAEP) to allow the reader to judge the utility of the design, data quality, reasonableness of assumptions, appropriateness of data analyses, and generalizability of inferences made from the data. After an introduction by A. E.…
Descriptors: Data Collection, Data Processing, Databases, Field Tests
