In day to day language, efficacy and effectiveness are essentially interchangeable. If you google the definition of efficacy you get the following: the ability to produce a desired or intended result. Do the same for effectiveness and you will find: the degree to which something is successful in producing a desired result. Remarkably similar, right? However when discussing research, effectiveness and efficacy represent two distinct scientific approaches that require precision in language. The difference between the two lies in what question the trial aims to answer and how it is designed.
Read MoreYour Body is Not a Machine and I Am Not a Mechanic
(And we clinicians do not “fix” you.)
And if I could make the title longer: I do not treat with a “toolbox.” In fact, I’m nearly incompetent with anything more complex than a screwdriver and an Ikea desk, never mind the human body.
Read MoreHow Placebo Can Deceive Us
The psychobiological phenomena that is the placebo effect can often be responsible for the misattribution of a clinical outcome’s cause to a specific treatment’s effect. Through expectation, conditioning and other means, the placebo effect can create the illusion that ineffective treatments are helpful or that a patient’s improvement was brought about by a treatment’s specific mechanism of action, which is not always the case. Given the complex and emergent nature of pain, it is an incredibly difficult (if not impossible) task for us to determine the cause of a positive outcome in an environment as chaotic as the clinic. My goal with this post is to facilitate a deeper level of thinking regarding the assumptions that can be made from observed clinical outcomes by highlighting how the placebo effect can impact a treatment’s outcome and how easily it can deceive us.
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