Provide an Appropriate Response

question 165

Multiple Choice

Provide an appropriate response.
-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 as
To use and a planned diet for six weeks. The other half of the group is given a placebo with the same instructions
And same diet. None of the participants know to which group they belong. She weighs each subject on Friday of
Each week. What type of blinding is being used?

• A)single-blind
• B)double-blind
• C)triple-blind
• D)does not use blinding

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