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You might be interested in equivalence testing, which allows you to reject the presence of some smallest effect size of interest. It's a fairly simple extension of NHST as done by psychologists and

and

got a nice tutorial>

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Here's the final article journals.sagepub.com/doi/abs/10.117 and the preprint in case you can't access the journal

psyarxiv.com

Equivalence Testing for Psychological Research: A Tutorial

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)...

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Funny no one mentions to report a confidence interval. If you already have a p > .05, turning to equivalence testing at this point would be p-hacking.

6:43 AM · Feb 23, 2019Twitter for Android