How experimenter effect may have played a role in results

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Reference no: EM131411585

An investigator believes that a new medication will help to reduce anxiety and that a placebo will not.

In a single-blind study (patients are blind), she finds that the group taking the new medication had reduced anxiety while the placebo group did not. Explain how the experimenter effect may have played a role in the results.

Reference no: EM131411585

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