The rehabilitation therapist wants to determine if the sensory integration sessions are helping to reduce Ed's hand-slapping. What is the BEST method for recording momentary time-sampling data?
I'm leaning towards option D. Observing for a full hour and recording whether hand-slapping occurs at all during each 10-minute interval might give the therapist the best overall sense of the behavior.
I think option C might be the way to go. Dividing the observation period into 2-minute intervals and recording whether hand-slapping occurs at any moment during each interval seems like it would give a pretty detailed picture.
Option D is the way to go. An hour-long observation period with 10-minute intervals? That's some hardcore data collection right there. I hope Ed's therapist has a comfy chair and lots of coffee!
I'm glad Ed's therapist is trying to help him with his hand-slapping. Option C is the way to go - the more frequent the observations, the better we can track his progress. Though I hope the therapist doesn't get hand-slapped in the process!
I'm not sure why the question mentions 'momentary time-sampling data' - it seems like they're just looking for frequency of hand-slapping. Option C seems like overkill. I'd go with Option A.
Option C is the best method for recording momentary time-sampling data. Dividing the observation period into 2-minute intervals and recording whether hand-slapping occurs at any moment during each interval provides the most detailed and accurate data.
Lisha
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