Practical Significance: A Concept Whose Time Has Come
- 1 October 1996
- journal article
- Published by SAGE Publications in Educational and Psychological Measurement
- Vol. 56 (5) , 746-759
- https://doi.org/10.1177/0013164496056005002
Abstract
Statistical significance is concerned with whether a research result is due to chance or sampling variability; practical significance is concerned with whether the result is useful in the real world. A growing awareness of the limitations of null hypothesis significance tests has led to a search for ways to supplement these procedures. A variety of supplementary measures of effect magnitude have been proposed. The use of these procedures in four APA journals is examined, and an approach to assessing the practical significance of data is described.Keywords
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