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Contemporary Education

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Pohlmann, John T.	1
Sullins, Walter L.	1

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The Effects of Pooling the Interaction and Within Components on the Alpha and Power for Main Effects Tests.

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Pohlmann, John T. – 1972

The Monte Carlo method was used, and the factors considered were (1) level of main effects in the population; (2) level of interaction effects in the population; (3) alpha level used in determining whether to pool; and (4) number of degrees of freedom. The results indicated that when the ratio degrees of freedom (axb)/degrees of freedom (within)…

Descriptors: Analysis of Variance, Computer Programs, Factor Analysis, Hypothesis Testing

Focus on Research: Statistics.

Peer reviewed

Sullins, Walter L. – Contemporary Education, 1983

This paper comments on the impact of computers on statistical analysis and presents a concise, nontechnical overview of five statistical methods now being applied in educational research. Appropriate uses of these techniques are pointed out, along with dangers concerning misapplications. (PP)

Descriptors: Comparative Analysis, Computer Programs, Discriminant Analysis, Educational Research