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ABAB Reversal Design Example
An ABAB reversal design can be illustrated by a study aimed at improving a student's studying behavior. The percentage of time spent studying is measured and found to be low during the initial baseline phase. A treatment is then introduced, causing studying time to increase until it stabilizes. When the treatment is removed during the second baseline phase, the studying behavior decreases. Finally, the treatment is reintroduced in a second treatment phase, which leads to studying behavior increasing once again.
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Research Methods in Psychology - 4th American Edition @ KPU
Related
Baseline Phase
Treatment Phase
Internal Validity of Reversal Designs
Multiple-Treatment Reversal Design
Alternating Treatments Design
ABAB Design
Internal Validity in Reversal Designs
ABAB Reversal Design Example
Limitations of Reversal Design
Arrange the phases of a fundamental reversal design (ABA design) in the correct chronological order.
Disadvantages of ABAB Design
Arrange the phases of an ABAB design in the correct chronological order.
ABAB Reversal Design Example
Arrange the phases of an ABAB research design in their correct chronological order.
A researcher uses an ABAB design to test whether a relaxation technique reduces anxiety in a client. During the first treatment phase, the client's anxiety decreases. When the treatment is temporarily removed, anxiety increases again. The treatment is then reintroduced and anxiety decreases once more. What is the primary reason the researcher includes the final treatment phase rather than ending the study after the return-to-baseline phase?