A Nutritionist Wants to Conduct a Study to Validate the Efficacy

question 65

Multiple Choice

A nutritionist wants to conduct a study to validate the efficacy of an herb as an aid in weight loss. She randomly assigns half of a group of overweight persons to a treatment group who are given the herb with instructions for its use and a planned diet for six weeks. The other half of the group is given the same diet without the herb. A nurse at the nutrition center weighs each subject on Friday of each week. Select the potential source of confounding.

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

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Definitions:

Humane Treatment

The act of showing compassion, kindness, and respect towards others, particularly in the care and handling of all beings, including animals.

Mental Disorders

Health conditions involving significant changes in thinking, emotion, or behavior, associated with distress and/or impaired functioning.

Bethlehem Hospital

Historically known as Bedlam, it is one of the world's oldest hospitals for the treatment of mental illness, founded in London in the 13th century.

"Bedlam"

Historically, a term associated with the Bethlem Royal Hospital in London, now colloquially used to describe a scene of chaos or madness.