MCAT Math Question 30: Answer and Explanation
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Question: 30
15. Use of a colorimetric assay to determine protein concentration may be subject to all of the following EXCEPT:
- A. the use of standards.
- B. measurement error.
- C. the Hawthorne effect.
- D. systematic error.
Correct Answer: C
Explanation:
The Hawthorne effect—a change in behavior as a result of the knowledge that one is being observed—is only present with human subjects. Basic science research generally does not suffer from the Hawthorne effect.