Researchers uncover key scientific and statistical errors in obesity studies

obesity
This is an image of a weight scale. Credit: CDC/Debora Cartagena

A special statistical series in the journal Obesity identifies common scientific and statistical errors in obesity-relate studies, challenges assumptions about weight loss, and calls for increased application of control arms in obesity intervention studies.

In an effort to recognize and avoid statistical errors in studies, researchers have identified 10 oft-repeated errors in study design, analysis, interpretation, and reporting. The three most notable errors are: errors related to tests of pre-post differences between groups, inappropriate design or analysis of cluster randomized trials, and calculation errors in meta-analyses.

"Our effort to identify common statistical can help researchers avoid making these mistakes in the future," said Dr. Brandon George, lead author of one of the articles. "An emphasis on statistical issues from conception to publication of obesity research will improve the quality and rigor of the science, ideally translating to greater success in maintaining for people with obesity."

More information: George, B. J., Beasley, T. M., Brown, A. W., Dawson, J., Dimova, R., Divers, J., Goldsby, T. U., Heo, M., Kaiser, K. A., Keith, S. W., Kim, M. Y., Li, P., Mehta, T., Oakes, J. M., Skinner, A., Stuart, E. and Allison, D. B. (2016), Common scientific and statistical errors in obesity research. Obesity, 24: 781-790. DOI: 10.1002/oby.21449
Journal information: Obesity

Provided by Wiley
Citation: Researchers uncover key scientific and statistical errors in obesity studies (2016, March 30) retrieved 28 November 2022 from https://medicalxpress.com/news/2016-03-uncover-key-scientific-statistical-errors.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.

Explore further

Fixing published research mistakes not easy; fixing the publishing system may be harder

3 shares

Feedback to editors