a. The likelihood that the study groups will
be comparable is increased
b. Self-selection for a particular treatment
is eliminated
c. External validity of the study is
increased
d. Assignment of the next subject cannot be
predicted
-----------------------------------------------------------------------------------------------------
Ans: c. External validity of the study is increased
External Validity depends on how representative are the study subjects "selected" for the RCT. Randomization will start after selection of subjects for the study.
No comments:
Post a Comment