Question 1 of 30 You read a report on a scientific study that does not use double-blind design,
in which neither the researcher nor the patients knew who received the drug
and who received the placebo. What should you be concerned about with
regard to the results of the study?
O A. Ethical violations may have occurred.
B. A conflict of interest might have distorted the results.
C. The study might not have had a large enough sample to be
reliable.
D. The results may have been affected by bias.
SUBMIT