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Results

#1. A behavior analyst is designing a single-subject experiment to evaluate the effectiveness of a new intervention for increasing social greetings. Before introducing the intervention, the analyst collects baseline data on the target behavior. Which of the following best describes the ideal characteristic of the baseline data that would facilitate a clear determination of a functional relation?

A) Baselines that exhibit rapid and unpredictable changes, indicating a dynamic environment.

B) Baselines that show a clear ascending or descending trend, suggesting an existing influential variable.

C) Baselines that remain steady and stable across observation periods, subjects, and settings.

D) Baselines that display significant variability, allowing for a broader range of comparisons with intervention data.

The text explicitly states we want our baselines to remain steady across settings subjects or behaviors we dont want a lot of variability between our baselines we dont want level changes variations trend changes we want baseline steady A stable baseline is crucial because it provides a consistent and predictable measure of the target behavior prior to any intervention This consistency allows the behavior analyst to clearly observe and attribute any subsequent changes in behavior during the intervention phase directly to the introduction of the independent variable thereby enabling a confident determination of a functional relation If the baseline data were highly variable showing rapid changes or demonstrating a clear trend options A B and D it would be difficult to discern if any changes during the intervention phase were due to the intervention or merely a continuation of existing variability or trends thus obscuring the functional relation

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