Which of the following is NOT a reason given for incorporating random assignment into one's research design?
A) Random assignment permits the use of certain statistical tests.
B) Random assignment prevents possible biases in determining which treatment a subject receives.
C) Random assignment increases the reliability and validity of one's experimental design.
D) Random assignment distributes the characteristics of the sampling units over all experimental conditions.

Question

Quizplus · Accepted Answer

Random assignment increases the internal validity of an experiment by ensuring that any differences observed between groups are due to the treatment and not to preexisting differences. It does not directly increase the reliability or validity of the experimental design itself; these are broader concepts that encompass more than just how subjects are assigned to groups.

Which of the Following Is NOT a Reason Given for Incorporating