Which statement BEST describes the value of random assignment in experimental designs?
A) It enables researchers to fully control the specific experience of the different groups of participants.
B) It helps to ensure that participants receiving different treatments are similar at the start of the experiment.
C) It allows researchers to accurately determine the direction of causation.
D) It removes the possibility of encountering the third-variable problem.

Question

Quizplus · Accepted Answer

Random assignment helps to ensure that participants receiving different treatments are similar at the start of the experiment. This is important because it reduces the likelihood that pre-existing differences between groups will influence the results, making it more likely that any observed differences are due to the treatment. The other options (A, C, and D) are not accurate descriptions of the value of random assignment.

Which Statement BEST Describes the Value of Random Assignment in Experimental