Recalibrating expectations about effect size: A multi-method survey of effect sizes in the ABCD study

  title={Recalibrating expectations about effect size: A multi-method survey of effect sizes in the ABCD study},
  author={Max Michael Owens and Alexandra S. Potter and Courtland S. Hyatt and Matthew D. Albaugh and Wesley K. Thompson and Terry L. Jernigan and Dekang Yuan and Sage Hahn and Nicholas A. Allgaier and Hugh Garavan},
  journal={PLoS ONE},
Effect sizes are commonly interpreted using heuristics established by Cohen (e.g., small: r = .1, medium r = .3, large r = .5), despite mounting evidence that these guidelines are mis-calibrated to the effects typically found in psychological research. This study’s aims were to 1) describe the distribution of effect sizes across multiple instruments, 2) consider factors qualifying the effect size distribution, and 3) identify examples as benchmarks for various effect sizes. For aim one, effect… 

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