Evidence Based Practice modules-2013 - What do these statistical tests mean? How to evaluate the clinical research studies you read.

2013 - What do these statistical tests mean? How to evaluate the clinical research studies you read. - Brent Graham MD MSc FRCSC

Back to course

Video Transcription

Video Summary

In this video, the speaker, Brent Graham, discusses the importance of understanding the limitations and biases in research studies. He explains his role as a research director and editor at the Journal of Bone and Joint Surgery, where he reviews manuscripts and evaluates their methodological content. Graham emphasizes the need for readers to approach medical information with skepticism, regardless of the source, and to critically analyze the limitations of study design, potential sources of bias, and the appropriate use of statistical tests. He also touches on the concept of power in research studies, which indicates the probability of finding a true difference between groups. Additionally, Graham highlights the issue of bilateral cases being considered independent, stating that they should be analyzed separately or stratified in the results. He concludes by discussing the limitations of meta-analyses and the importance of ensuring that studies being combined have similar methods and outcomes. Overall, Graham provides insights into how readers can better understand and interpret video content.

Keywords

limitations

biases

research studies

skepticism

study design

sources of bias

statistical tests

power

meta-analyses