In an experiment,participants are usually assigned to treatments using random assignment.The reason for using random assignment is
A)to allow the experimenter to manipulate participant variables.
B)to allow the experimenter to manipulate environmental variables.
C)to help control extraneous variables.
D)a required component of all experiments.

Question

Quizplus · Accepted Answer

Using random assignment helps to control extraneous variables, which are variables other than the independent variable that could potentially affect the outcome of the experiment. By randomly assigning participants to treatments, any extraneous variables should be evenly distributed across the groups, reducing the potential for them to impact the results. Random assignment does not necessarily relate to manipulation of participant or environmental variables, and while it is typically used in experiments, it is not a required component in all scenarios.

In an Experiment,participants Are Usually Assigned to Treatments Using Random