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Results

#1. A Board Certified Behavior Analyst (BCBA) is reviewing a client’s aggression data displayed on a line graph. The graph includes a baseline series (Series 1) and three subsequent intervention series (Series 2, 3, and 4). Visual analysis indicates Series 1 (baseline) shows a high frequency of aggression (7-8 times per session). Series 2 shows a reduction in aggression but is not as effective as Series 3 and 4. Series 3 shows one instance of aggression for three consecutive days, while Series 4 shows one instance of aggression for only one day, with some visual overlap between Series 3 and 4, but Series 3 appears slightly more consistent in maintaining a low frequency. Based on this visual analysis, what is the most appropriate conclusion regarding the interventions?

Continue taking data until Series 3 or 4 visually separates itself further from the others.

Implement a multiple baseline design to further evaluate each treatment individually.

Withdraw treatment and then implement each intervention separately to compare their effects.

Conclude that Series 3 is the most effective treatment among the interventions implemented.

The text explicitly guides us on interpreting this scenario So if we want to find the most effective intervention well we really need to do is visually analyze this chart And lets just look and see that series 3 is just going to be more effective Simplest explanation is usually the best in this case series 3 Right Least amount of frequency of aggression after baseline Just use series 3 The prompt states that the interventions have already shown a clear reduction from baseline separated themselves and that further data collection implementing new designs like a multiple baseline or withdrawing effective treatments are unnecessary when visual analysis clearly indicates a superior intervention Visual analysis is a cornerstone of data interpretation in ABA and in this case its sufficient to identify Series 3 as the most effective for reducing aggression frequency

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