Using Effect Size—or Why the P Value Is Not Enough

Published on Sep 1, 2012in Journal of Graduate Medical Education
· DOI :10.4300/JGME-D-12-00156.1
Gail M. Sullivan15
Estimated H-index: 15
Richard Feinn1
Estimated H-index: 1
Effect size helps readers understand the magnitude of differences found, whereas statistical significance examines whether the findings are likely to be due to chance. Both are essential for readers to understand the full impact of your work. Report both in the Abstract and Results sections.
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