For experimental research to be valid there must be a control group, experimental group, and placebo group in the design.

Name: For experimental research to be valid there must be a control group, experimental group, and placebo group in the design.
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Question

Quizplus · Accepted Answer

Not all experimental designs require a placebo group. A control group and an experimental group are necessary, but a placebo group is only needed if the study involves testing the effectiveness of a new treatment or medication.

For Experimental Research to Be Valid There Must Be a Control