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Results
#1. A Board Certified Behavior Analyst (BCBA) is working with a supervisee who is struggling to implement a new behavior intervention plan. The BCBA notices that whenever she is present during sessions to observe the supervisee’s technique, the supervisee’s performance changes significantly, often becoming either overly rigid or visibly anxious. The BCBA wants to gather accurate data on the supervisee’s typical performance without her presence influencing the observation. Considering the goal of minimizing reactivity in data collection, which measurement procedure would be most appropriate for the BCBA to employ?
The core concept here is reactivity which is the change in behavior due to the presence of an observer or other stimuli The goal is to minimize this effect Permanent Product is the most appropriate choice because it involves measuring the lasting effects of behavior rather than observing the behavior as it occurs This means the observer does not need to be present during the behavior thus completely eliminating reactivity caused by the observers presence For example the BCBA could review completed data sheets progress notes or other work products created by the supervisee after a session without having to be in the room while the supervisee is performing the intervention Momentary Time Sampling involves observing at specific brief moments at the end of an interval While it reduces the overall observation time compared to continuous methods the supervisee would still be aware of the BCBAs presence during those observation moments potentially leading to reactivity albeit less than continuous observation WholeInterval Recording requires the behavior to occur throughout the entire interval for it to be recorded While the observation might be broken into intervals the observer is still present and actively watching for a significant portion of the session making reactivity a substantial concern Event Recording involves counting every instance of a behavior This method necessitates continuous observation of the behavior as it happens which would maximize the opportunity for the supervisee to react to the BCBAs presence Therefore it is the least suitable option for reducing reactivity
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