Annals of the Rheumatic Diseases Viewpoint http://ard.bmj.com Annals of the Rheumatic Diseases RSS feed -- recent Viewpoint articles Annals of the Rheumatic Diseases 0003-4967 Annals of the Rheumatic Diseases http://ard.bmj.com/site/homepage/ARD_95x60.gif http://ard.bmj.com <![CDATA[Adjustment of p values for multiple hypotheses: why, when and how]]> http://ard.bmj.com/cgi/content/short/83/10/1254?rss=1 It is quite common to investigate multiple hypotheses in a single study. For example, a researcher may want to investigate the effect on several outcome variables or at different time points, compare more than two groups or undertake separate analyses for subgroups. This increases the probability of type I errors. Different procedures for multiplicity adjustment are available to control the probability of type I errors. In the present article, we describe some methods for multiplicity adjustment, along with recommendations.

]]> 2024-09-30T06:17:14-07:00 info:doi/10.1136/ard-2024-225537 hwp:master-id:annrheumdis;ard-2024-225537 BMJ Publishing Group Ltd 2024-10-01 Viewpoint 83 10 1254 1255