Multiple Choice
What is the effect of recruiting volunteers to participate in a randomized experiment?
A) The results will be more credible because people who really wanted to participate took part in the study.
B) The results cannot necessarily be extended to the larger population.
C) There will be no effect because the people are always randomly assigned to treatments, eliminating any type of bias.
D) Researchers are never allowed to use volunteers to participate in an experiment.
Correct Answer:
Verified
Correct Answer:
Verified
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