A child is having temper tantrums at home,at school,and at his grandparents' house.After working with the parents for a while,the therapist believes that the child is being rewarded for his tantrums in each setting because his teacher,parents,and grandparents generally give him what he wants just to make him stop yelling.The therapist devises a plan to stop his tantrums but first implements the plan at home,then the following week at school,and finally at the grandparents' home several weeks later.From a research perspective,this is an example of a(n)

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This is a multiple baseline design because the therapist is implementing the plan in different settings at different times to see if the behavior change is a result of the intervention and not some other factor. The withdrawal design involves removing the intervention to see if the behavior reverts back, placebo control involves having a group that receives a fake intervention to compare to the real intervention group, and external validity design involves testing whether the results can be generalized to other populations or settings. None of these are as applicable to this situation as the multiple baseline design.

A Child Is Having Temper Tantrums at Home,at School,and at His