What is the primary characteristic of an ABAB design in experimental psychology?Group of answer choicesIt involves two independent variablesIt includes multiple treatment conditionsIt employs a reversal designIt focuses on within-subject comparisons
Question
What is the primary characteristic of an ABAB design in experimental psychology?Group of answer choicesIt involves two independent variablesIt includes multiple treatment conditionsIt employs a reversal designIt focuses on within-subject comparisons
Solution
The primary characteristic of an ABAB design in experimental psychology is that it employs a reversal design. This design is also known as a reversal or switch design. The ABAB design involves two phases: A (baseline) and B (intervention). The process starts with the baseline (A), switches to the intervention (B), reverts back to the baseline (A), and finally returns to the intervention (B). This allows researchers to observe whether behavior changes when the treatment is introduced (B) and withdrawn (A), and then reintroduced (B).
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An ABAB design has internal validity advantages over the ABA designGroup of answer choicesFalseTrue
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