Question

question 10 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 with regard to the results of the study? a. a conflict of interest might have distorted the results. b. the results may have been affected by bias. c. ethical violations may have occurred. d. the study might not have had a large enough sample to be reliable.

Explanation:

A double-blind design prevents bias by ensuring neither researchers nor participants know group assignments. Without it, even if neither knew here, bias remains a key concern for result validity.

Answer:

B. The results may have been affected by bias.