_____ serves to turn confounding variables associated with treatment order into disturbance variables.
A)Counterbalancing
B)Random Assignment
C)Random selection
D)Sphericity

Question

Quizplus · Accepted Answer

Counterbalancing serves to systematically change the order of treatments for different participants so that any confounding variables associated with treatment order become disturbance variables, which can be controlled or minimized using statistical methods. Random assignment refers to randomly assigning participants to different treatments or groups, random selection refers to randomly selecting a sample from a population, and sphericity refers to a statistical assumption in analyzing repeated measures designs. While these other methods may also be important in experimental research, they do not directly address the need for controlling treatment order effects by counterbalancing.

_____ Serves to Turn Confounding Variables Associated with Treatment Order