Effect sizes for experimental research.
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| Title: | Effect sizes for experimental research. |
|---|---|
| Authors: | Hedges, Larry V. (AUTHOR) |
| Source: | British Journal of Mathematical & Statistical Psychology. Feb2026, Vol. 79 Issue 1, p31-45. 15p. |
| Subjects: | Effect sizes (Statistics), Statistics, Scientific experimentation, Standard deviations, Statistical significance, Scientific method, Random effects model, Fixed effects model |
| Abstract: | Good scientific practice requires that the reporting of the statistical analysis of experiments should include estimates of effect size as well as the results of tests of statistical significance. Good statistical practice requires that effect size estimates be reported along with some indication of their statistical uncertainty, such as a standard error. This article provides a review of effect sizes for experimental research, including expressions for the standard error of each effect size. It focuses on effect sizes for experiments with treatments having a single degree of freedom but also includes effect sizes for treatments with multiple degrees of freedom having either fixed or random effects. [ABSTRACT FROM AUTHOR] |
| Copyright of British Journal of Mathematical & Statistical Psychology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
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