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Statistical Significance	2
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Journal of Speech and Hearing…	1
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Markel, William D.	1
Young, Martin A.	1

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Statistical Significance: A Misunderstood Concept.

Peer reviewed

Markel, William D. – School Science and Mathematics, 1985

The concept of statistical significance is explained, with specific numerical illustrations. (MNS)

Descriptors: Educational Research, Mathematical Concepts, Probability, Research Methodology

Supplementing Tests of Statistical Significance: Variation Accounted For.

Peer reviewed

Young, Martin A. – Journal of Speech and Hearing Research, 1993

This tutorial summarizes some of the widely known limitations of tests of statistical significance and then focuses on extracting measures of variation accounted for as a supplement to significance testing. Two measures of variation accounted for, eta squared and omega squared, are discussed. Computational formulas, computational examples, and…

Descriptors: Analysis of Variance, Effect Size, Probability, Research Methodology