For a within-subjects experiment comparing two treatments,a researcher is concerned that the results may be confounded by outside events that occur between the first and second treatments.One way to reduce the likelihood that scores will be influenced by an outside event is
A)to switch to a between-subjects design.
B)to decrease the amount of time between the two treatments.
C)to counterbalance the order of treatments.
D)all of the other options are methods to reduce the effect of an outside event.

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The Answer of For a within-subjects experiment comparing two treatments,a researcher is concerned that the results may be confounded by outside events that occur between the first and second treatments.One way to reduce the likelihood that scores will be influenced by an outside event is
A)to switch to a between-subjects design.
B)to decrease the amount of time between the two treatments.
C)to counterbalance the order of treatments.
D)all of the other options are methods to reduce the effect of an outside event.

For a Within-Subjects Experiment Comparing Two Treatments,a Researcher Is Concerned