Which of the following is a difference between the types of AB designs?
a. There is a possibility of carryover effects in a randomized AB design, whereas there is no such possibility in an ABAB design.
b. An AB design uses categorical variables, whereas a randomized AB design uses continuous variables.
c. An AB design does not involve withdrawal of treatment, whereas an ABAB design involves withdrawal of treatment.
d. A maximum of two phases can be accommodated by a randomized AB design, whereas an ABAB is a four phase experiment.
Question 2
Which of the following is FALSE regarding ethical practices when conducting group work?
a. All persons with an advanced degree are qualified to lead groups.
b. It is the responsibility of the leader to understand group dynamics and processes.
c. A leader must have a thorough knowledge of the subjects being discussed in group.
d. Group members should not attempt any technique unless they are trained to use it.
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