Primary based on the best available evidence.
Primary limitation of evidence based treatment is shortage of evidence, as the term implies, is predicated on the belief that what we do as professionals should be based on the best available evidence. Generally, the best evidence comes from well-designed and –executed randomized controlled trials (RCTs) or, better yet, meta-analyses of a number of RCTs.
A second criticism is that the alternative to using evidence-based interventions with their known rate of failure is to use unproven procedures, based only on the hope that they may work, but without any real knowledge of how often they do or do not, except our recall of successful cases. However, memory is a slippery thing. Further there’s need to training and development. It Ignores the Clients’ Values and Preferences. On the other side it is relatively easy to teach critical appraisal skills and the evidence-based approach to students and staff. It aims to provide the most effective care that is available, with the aim of improving patient outcomes. Patients expect to receive the most effective care based on the best available evidence