The researcher's methodology was designed to _______ bias by ensuring that neither the subjects nor the investigators knew which participants received the treatment and which received the placebo.
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readingWhich choice completes the text with the most logical and precise word or phrase?
A
introduce
B
celebrate
C
measure
D
eliminate
Correct Answer: D
Choice D is the best answer. The passage describes blinding participants and investigators to prevent bias. "Eliminate" means to remove completely, fitting this effort to prevent bias.
Choice A is incorrect because "introduce" would add unwanted bias. Choice B is incorrect because "celebrate" is inappropriate for bias. Choice C is incorrect because "measure" doesn't prevent bias.