Which type of recording focuses on measuring the elapsed time a behavior occurs?

Duration recording is the correct type of recording when measuring the elapsed time a behavior occurs. This method collects data on how long a specific behavior lasts from the start of the behavior to its end. It is especially useful for behaviors that vary in length or those that occur over an extended period. By capturing the duration, practitioners can assess the intensity or impact of the behavior on the individual or environment.

On the other hand, frequency recording tallies the number of times a behavior occurs within a set timeframe, while latency recording measures the time that elapses between a given stimulus and the onset of a behavior. Event recording simply counts the occurrence of behaviors but does not account for how long each behavior lasts. Hence, duration recording specifically addresses the measurement of the elapsed time a behavior occurs, making it the most appropriate choice for this question.