In studies examining the effectiveness of a nutrient, subjects are divided into two groups. The ____ group receives the nutrient, while the control group does not.

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The experimental group is the one that receives the treatment, in this case the nutrient, while the control group does not. The placebo group is a type of control group where the participants receive a substance that has no therapeutic effect and is used to compare the effects of the treatment to those of a "fake" treatment. Randomized refers to the process of assigning participants to either the experimental or control group randomly. Sample refers to the group of participants being studied.

In Studies Examining the Effectiveness of a Nutrient, Subjects Are