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Results
#1. As a new behavior analyst in charge of personnel training and management, you observe significant reactivity among your staff their performance changes noticeably when you are present for observation. To reduce this reactivity and obtain a more accurate measure of their typical performance, which type of measurement strategy would generally be considered most effective among the given options for minimizing observer presence?
Reactivity refers to a phenomenon where a persons behavior changes because they are aware of being observed When a supervisors presence alters staff performance the data gathered may not accurately reflect the staffs typical or natural behavior To mitigate reactivity the most effective measurement strategies are those that are least intrusive and minimize the duration or frequency of direct observer presence A Continuous event recording This method requires the observer to be present and actively monitoring for the entire duration the target behavior could occur This maximizes observer presence and is highly susceptible to reactivity as the observed individual is constantly aware of being watched B Whole interval recording and C Partial interval recording Both types of interval recording require the observer to be present and continuously attend to the behavior throughout each specified interval eg 10 minutes or 5 minutes While these methods might be less demanding than continuous event recording for some behaviors they still involve a significant continuous presence of the observer for extended periods which can induce and maintain reactivity The text notes that interval recording might be an improvement but maybe its not a perfect solution and event recording is worse because of constant presence D Momentary time sampling MTS This method is generally considered the most effective among the given options for reducing observer reactivity With MTS the observer is only required to be present and observe whether the behavior is occurring at specific predetermined moments eg at the precise end of each 5minute interval The observer is not required to continuously watch the individual during the entire interval This significantly reduces the total time the observer is actively monitoring the staff thereby minimizing their perceived presence and consequently reducing the likelihood and impact of reactivity The core principle here is to observe less intrusively or without observing as much making MTS a superior choice for addressing reactivity
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