In scientific research,what is the result called when participants' expectations lead them to experience some change even though they received an empty,fake,or ineffectual treatment

Question

Quizplus · Accepted Answer

The placebo effect is the result called when participants' expectations lead them to experience some change even though they received an empty, fake, or ineffectual treatment. This is a common phenomenon in scientific research and is usually controlled for using a control group that receives a placebo while the other group receives the actual treatment being studied.

In Scientific Research,what Is the Result Called When Participants' Expectations