Strength of Recommendation – the Rudner Problem

Strength of Recommendation hierarchies such as SORT and GRADE go a step further than your standard hierarchy of evidence. Standard hierarchies tend to rank or rate the evidence provided by a study on a scale of quality, strength or validity. Strength of Recommendation hierarchies are usually two-step processes. First, they …

The Disunity of Evidence-Based Medicine

Critics and advocates alike have expended much effort defining Evidence-Based Medicine. However, there has been little consensus about what “Evidence-Based Medicine” is. Some authors see ‘EBM’ as something one believes—a view about medicine. Others interpret EBM as something one does—a particular way of practicing medicine. Still others seem to view …