Multiple treatment interference is a major concern in ...

[newbem]

Multiple treatment interference is a major concern in establishing a functional relationship in an alternating treatments design. Cite two strategies (other than counterbalancing) a researcher may use to reduce the likelihood of multiple treatment interference.
 
  What will be an ideal response?

Question 2

Explain the concept of counterbalancing variables and interventions in an alternating treatments design.
 
  What will be an ideal response?

[xiazhe]

Answer to Question 1

First, the researcher could select interventions that are noticeably and substantially different from one another.
Second, the researcher could include both pre-intervention and withdrawal of treatments baseline data to demonstrate the functional relationship.
Third, the researcher could end the study with a final (best) treatment phase, particularly if preceded by a withdrawal phase to further demonstrate the functional relationship.

Answer to Question 2

Because the purpose of the design to evaluate the more effective independent variable among one or more interventions, the researcher should ensure that each intervention is fully implemented and counterbalanced in several dimensions. Counterbalancing involves making sure that who is implementing the interventions, the time of day, day of the week, setting, and other possible confounding variables are counterbalanced so no unintended advantage is provided for an intervention.