Which of the following would be a poor choice for momentary interval recording?

Momentary interval recording is a data collection method used in behavior analysis to observe whether a behavior occurs at specific moments in time, typically at the end of predetermined intervals. It involves checking if the behavior is present at the conclusion of each interval rather than observing the behavior continuously.

In the context of this question, a poor choice for momentary interval recording would be an activity that requires sustained attention and might not allow for a clear moment of observation. When reading a book, there are numerous factors at play, such as focusing on the content, turning pages, or daydreaming, which makes it challenging to accurately determine if a specific behavior is occurring at any given moment.

In contrast, activities that have clear, distinct moments of occurrence or non-occurrence, such as standing up at a designated time, provide more straightforward opportunities for momentary recordings. These activities allow for a clear point of observation, making them suitable for this type of data collection. Thus, reading a book would not be an effective choice for momentary interval recording due to the continuous and variable nature of the reading behavior.