Dr Hernandez Is Researching the Effect of a New Treatment

question 113

Multiple Choice

Dr. Hernandez is researching the effect of a new treatment for depression. She is so excited about this treatment because she is sure it will help people. When she hands out the placebo pills, she is able to keep a neutral expression on her face. When she hands out the actual pills, she can't help but let a little smile curl her lips and she bounces up and down very slightly due to her expectations the pill will really help these people. She is not aware she is doing anything different. As her student, you need to point this out to her to save the study from _____ bias.

• A)experimenter
• B)participant
• C)intentional
• D)accidental

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Definitions:

Diels-Alder

A synthetic chemical reaction between a conjugated diene and a substituted alkene, known as the dienophile, to form a cyclic product.

Allyl Bromide

A halogenated compound (C3H5Br), often used as a building block in organic synthesis for introducing allyl groups.

Ethyl Bromide

A colorless, volatile compound used primarily in organic synthesis and as a fumigant; it is an alkyl halide with the formula C2H5Br.

Major Organic Product

The primary compound that results from a chemical reaction involving organic reactants, often in higher yield compared to any side products.