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I think the field of persuasive communication is relevant for your answer, as well as research into the efficacy of psychotherapy. Customers trust advertising if it is communicated by: attractive persons credible experts Psychotherapy is more effective if: the therapist believes that his methods are effective (!) patient and therapist share the same ...


Short answer Don't believe everything you read. Background The article cited (Kirsch, 2014) appears in a German journal with a mediocre impact factor. Not the most convincing platform. I'll cite parts of the abstract, starting with But analyses of the published data and the unpublished data that were hidden by drug companies reveals that most (...


Not an answer, because I couldn't find any studies, but too long for a comment: Placebos aren't arbitrary. You are not given chocolate chips as a placebo treatment for a cold. The placebeo has the form of a "real" treatment for the illness or disorder, e.g. a pill without an agent. This means that in your experiment your subjects must treat themselves ...


It has been shown that even if you tell a patient this pill is placebo and it's not going to help you, there's still some positive effect. It's all about perception. There was a really good TED talk with the topic "Is there scientific proof we can heal ourselves?" at TEDxAmericanRiviera presented by Lissa Rankin, MD.

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