The "A-B-A-B" Design Is a Slight Variation on the A-B-A

question 35

Multiple Choice

The "A-B-A-B" design is a slight variation on the A-B-A design, in which treatment is returned at the end of the experiment. Under what conditions would this be most desirable?

• A) if the researcher is still not sure whether the treatment was effective
• B) if the treatment has some beneficial therapeutic effect
• C) if the treatment did not produce the desired effect the first time it was presented
• D) if the participant enjoyed the treatment

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