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Direct linkLopez, Francesca; Olson, Amy; Bansal, Naveen – Journal of Psychoeducational Assessment, 2011
Individually administered tests are often normed on small samples, a process that may result in irregularities within and across various age or grade distributions. Test users often smooth distributions guided by Thurstone assumptions (normality and linearity) to result in norms that adhere to assumptions made about how the data should look. Test…
Descriptors: Age Groups, Sampling, Sample Size, Raw Scores
PDF pending restorationBush, M. Joan; Schumacker, Randall E. – 1993
The feasibility of quick norms derived by the procedure described by B. D. Wright and M. H. Stone (1979) was investigated. Norming differences between traditionally calculated means and Rasch "quick" means were examined for simulated data sets of varying sample size, test length, and type of distribution. A 5 by 5 by 2 design with a…
Descriptors: Computer Simulation, Item Response Theory, Norm Referenced Tests, Sample Size
