Layne Is Trying to Watch Less Television

Essay

Layne is trying to watch less television.Her friend Ryan is a psychologist who agrees to help her.He creates a treatment plan that involves giving Layne $5 for every day that she watches fewer than 90 minutes of television.He monitors her television watching for three days,treats her for three days and monitors her,and then just monitors her for three more days.

-Imagine that Ryan and Layne's study finds the following pattern of results.Explain whether Ryan and Layne should conclude that the $5 treatment is effective at decreasing television viewing and whether they should be concerned by an instrumentation threat.(In the graph,B indicates baseline and T indicates Treatment. )