Which of the following statements is true concerning medical research studies?
A)Subjects are not randomly assigned to either a treatment group or control group.
B)To be considered reliable results, the same results must be obtained by no other researchers conducting the same study.
C)Researchers assign participants to either a treatment group or control group in order of when the participants register for the study.
D)Clinical studies attempt to establish cause-and-effect relationships.

Question

Quizplus · Accepted Answer

Clinical studies attempt to establish cause-and-effect relationships between the treatment and the outcome. The other options are incorrect as subjects are typically randomly assigned to treatment or control groups, reliable results should be replicated by others, and participant registration order is not used for group assignment in medical research studies.

Which of the Following Statements Is True Concerning Medical Research