Subject-expectancy effect
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In scientific research and
double-blind
methodology is used to eliminate the effect.
Like the
nocebo effect
, depending on how the influence pans out.
Example
An example of a scenario involving these various effects is as follows: A woman goes to her doctor with a problem. The doctor diagnoses with certainty, and then clearly explains the diagnosis and the expected route towards recovery. If he does this convincingly, calming her, removing fear and instilling hope, she will likely, through the positive expectancy, experience the placebo effect, aiding in her recovery.
On the other hand, if her doctor had had little time for her, was uncertain about the diagnosis, and had given her a
side effects (combined, say, with the patient having talked to a neighbor who also speaks along the same lines about the horrible side effects), then the chance of negative subject-expectancy, or nocebo
, becomes quite large.
See also
Bibliography
- Gomm, Roger (2009). "Subject reactivity". Key Concepts in Social Research Methods. Palgrave Macmillan. ISBN 9781137175175.