Advances in Methods and Practices in Psychological Science· 2018Q1
Equivalence Testing for Psychological Research: A Tutorial
- 1,561citations
- Q1SCImago
- 2018year
Short summary
Psychologists can now test for the absence of meaningful effects using the two one-sided tests (TOST) procedure, which determines if an observed effect is surprisingly small relative to a smallest effect size of interest (SESOI).
AI-generated from the title and abstract; the full text is not read.
Key points
- The two one-sided tests (TOST) procedure allows researchers to test for equivalence, i.e., the absence of a meaningful effect.
- Equivalence tests help determine if an observed effect is surprisingly small compared to a smallest effect size of interest (SESOI).
- The paper explains how to determine and set the SESOI in psychological research.
- Detailed examples are provided for performing and reporting equivalence tests.
AI-generated from the title and abstract; the full text is not read.
Abstract
Psychologists must be able to test both for the presence of an effect and for the absence of an effect. In addition to testing against zero, researchers can use the two one-sided tests (TOST) procedure to test for equivalence and reject the presence of a smallest effect size of interest (SESOI). The TOST procedure can be used to determine if an observed effect is surprisingly small, given that a true effect at least as extreme as the SESOI exists. We explain a range of approaches to determine the SESOI in psychological science and provide detailed examples of how equivalence tests should be performed and reported. Equivalence tests are an important extension of the statistical tools psychologists currently use and enable researchers to falsify predictions about the presence, and declare the absence, of meaningful effects.
The authors' abstract, as published at the source. Advances in Methods and Practices in Psychological Science, 2018 · DOI ↗
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Field: Experimental and Cognitive Psychology
Experimental and Cognitive PsychologyPsychology