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Comparative Analysis2
Power (Statistics)2
Statistical Significance2
Algorithms1
Analysis of Variance1
Computer Simulation1
Logic1
Monte Carlo Methods1
Statistical Distributions1
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Educational and Psychological…2
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Rasmussen, Jeffrey Lee2
Dunlap, William P.1
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Algorithm for Shaffer's Multiple Comparison Tests.
Peer reviewed Peer reviewed
Rasmussen, Jeffrey Lee – Educational and Psychological Measurement, 1993
J. P. Shaffer has presented two tests to improve the power of multiple comparison procedures. This article described an algorithm to carry out the tests. The logic of the algorithm and an application to a data set are given. (SLD)
Descriptors: Algorithms, Analysis of Variance, Comparative Analysis, Logic
Dealing with Nonnormal Data: Parametric Analysis of Transformed Data vs Nonparametric Analysis.
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Rasmussen, Jeffrey Lee; Dunlap, William P. – Educational and Psychological Measurement, 1991
Results of a Monte Carlo study with 4 populations (3,072 conditions) indicate that when distributions depart markedly from normality, nonparametric analysis and parametric analysis of transformed data show superior power to parametric analysis of raw data. Under conditions studied, parametric analysis of transformed data is more powerful than…
Descriptors: Comparative Analysis, Computer Simulation, Monte Carlo Methods, Power (Statistics)