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- Title
You Can't Replicate What You Can't See: A Call for Researchers to Share Their Data and Avoid "Fragile" Correlations.
- Authors
WHITELEY, ROD; STEVENTON-LORENZEN, NIKOLAI; MANIAR, NIRAV; OPAR, DAVID
- Abstract
We suggest that a measure of a correlation's fragility is the minimum number of items that, when replaced with the group median, result in a nonsignificant correlation on reanalysis. Between January 2000 and July 2021, there were 1769 significant correlations reported in 142 papers published in this journal, and only 51 correlations (2.9%) had available data (scatter plots from which we could digitize the raw data). Twenty-six of these 51 correlations were fragile at 4 or fewer replacements. Five of the reported significant correlations were not significant when we replicated the analysis from the extracted data.
- Subjects
STATISTICS; STATISTICAL significance; MULTIPLE regression analysis; DESCRIPTIVE statistics; STATISTICAL correlation; SPORTS medicine; PHYSICAL therapy research; CAUSALITY (Physics); PROBABILITY theory
- Publication
Journal of Orthopaedic & Sports Physical Therapy, 2021, Vol 51, Issue 12, p556
- ISSN
0190-6011
- Publication type
Article
- DOI
10.2519/jospt.2021.0112