In the ABAB (reversal) research design, the person receiving the treatment is measured repeatedly during:
a. the A phases of the study.
b. the B phases of the study.
c. the first A phase and the second B phase of the study.
d. all four phases of the study.
Question 2
In the ABAB (reversal) research design, which of the following refers to the second A measurement?
a. Again under the influence of the therapeutic intervention
b. During a subsequent period when the intervention is temporally discontinued
c. During the time when the intervention is in effect
d. Prior to intervention
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