For which of these reasons would a nurse researcher choose to assign subjects randomly to groups in a study?
A) To help ensure that all groups within a study are representative of the larger population
B) To increase the chance that the study groups will be different from each other with regard to extraneous variables
C) To help 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

Random assignment helps ensure that groups are representative of the larger population by minimizing selection bias, thus making the groups more comparable with respect to known and unknown variables.

For Which of These Reasons Would a Nurse Researcher Choose