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
Question 2
A potential ethical problem with using the A-B-A design in a therapeutic context is that it
a. does not seem to be useful for certain kinds of disorders.
b. entails ending in a non-treatment condition.
c. often aggravates the problem the treatment is meant to treat.
d. does not involve enough time in treatment to address all a behavior.
Summary of greenhouse experimental design and results
Patient receiving ultrasound treatment to the left elbow.
The patient's signature on the informed consent form indicates that the patient understands the
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The amount of genetic variation within populations is far greater than the variation between populat