Why would a nurse researcher choose to assign randomly the subjects in a study?
A) To ensure that all groups within a study are representative of the larger population
B) To increase the chances that the study groups will be different from each other with regard to extraneous variables
C) To ensure that current events do not influence the outcomes of the study
D) To eliminate the need for establishing specific study criteria and subject eligibility

Question

Quizplus · Accepted Answer

Correct A: Randomization is designed to ensure that study subjects represent the larger population.
Incorrect B: Study groups that are different with regard to extraneous variables would not be increased by randomization.
Incorrect C: Randomization cannot control current historical events.
Incorrect D: Randomization does not eliminate the need for study criteria and subject eligibility factors.

Why Would a Nurse Researcher Choose to Assign Randomly the Subjects