A Nutritionist Wants to Conduct a Study to Determine the Efficacy

question 4

Multiple Choice

A nutritionist wants to conduct a study to determine the efficacy of eating beans as an aid in weight loss. She randomly assigns half of a group of overweight persons to a treatment group who are given a planned diet which includes a variety of beans at two meals each day for six weeks. The other half of the group is given the same diet without the beans. Both diets are designed to have the same caloric content. A nurse at the nutrition center weighs each
Subject on Friday of each week. Select the potential source of confounding (if any) .

• A) Experimenter effect
• B) Placebo effect
• C) Method of assignment to treatment and control groups
• D) The study is essentially free of confounding sources.

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Definitions:

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Property Damage

Physical destruction or harm caused to buildings, personal property, or other tangible assets.

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A social theory that explains how ideas, attitudes, and behaviors spread through populations as if they were infectious diseases.

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