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Significance Test or Effect Size?

Chow, Siu L. (1988) Significance Test or Effect Size? [Journal (Paginated)]

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Abstract

I describe and question the argument that in psychological research, the significance test should be replaced (or, at least, supplemented) by a more informative index (viz., effect size or statistical power) in the case of theory-corroboration experimentation because it has been made on the basis of some debatable assumptions about the rationale of scientific investigation. The rationale of theory-corroboration experimentation requires nothing more than a binary decision about the relation between two variables. This binary decision supplies the minor premise for the syllogism implicated when a theory is being tested. Some metatheoretical considerations reveal that the magnitude of the effect-size estimate is not a satisfactory alternative to the significance test.

Item Type:Journal (Paginated)
Keywords:statistical significance, effect size, statistical power, meta-analysis, modus tollens, the sample-size problem, theeffect-size problem, the substantive-significance problem, theory corroboration
Subjects:Psychology > Cognitive Psychology
Philosophy > Philosophy of Science
ID Code:824
Deposited By:Chow, Dr. Siu L.
Deposited On:07 Aug 1999
Last Modified:11 Mar 2011 08:54

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