The only way to reduce the placebo effect in social science research is to treat the comparison group with something similar.

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The placebo effect arises when a participant's belief in the treatment causes an improvement in their condition. In order to reduce the placebo effect, the comparison group should be treated with a similar intervention that may produce some effect but without the active ingredient of the treatment being tested. This way, any improvement seen in the treatment group can be attributed to the active ingredient of the treatment rather than the placebo effect.

The Only Way to Reduce the Placebo Effect in Social