Random assignment to groups helps ensure that:
A)demand characteristics in each group are minimized.
B)an independent variable is manipulated in each group.
C)groups do not differ on variables not of interest.
D)a correlation does not exist between the independent and dependent variable.

Question

Quizplus · Accepted Answer

Random assignment to groups helps ensure that groups do not differ on variables not of interest. This means that any differences observed between the groups can be attributed to the independent variable being manipulated, rather than other factors that might influence the outcome.

Random Assignment to Groups Helps Ensure That