The Meaningfulness of Effect Sizes in Psychological Research: Differences Between Sub-Disciplines and the Impact of Potential Biases

Schäfer, Thomas; Schwarz, Marcus

doi:10.3389/fpsyg.2019.00813

Public

The Meaningfulness of Effect Sizes in Psychological Research: Differences Between Sub-Disciplines and the Impact of Potential Biases

Published in Frontiers in Psychology • Apr 11, 2019

Authors:

Thomas Schäfer

Marcus Schwarz

Abstract

Effect sizes are the currency of psychological research. They quantify the results of a study to answer the research question and are used to calculate statistical power. The interpretation of effect sizes—when is an effect small, medium, or large?—has been guided by the recommendations Jacob Cohen ...

Subject

Psychology

Cognitive psychology

Psychological science

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