Which of the following is a type of discontinuous measurement?

Discontinuous measurement refers to methods of observation where the behavior is not recorded continuously throughout the observation period; instead, it captures the behavior during specific intervals or segments of time. Partial interval recording, which is identified as the correct answer, falls under this category because it involves recording whether a behavior occurs at any time during a specified interval, regardless of how long it lasts. This method is often used when the focus is on understanding the occurrence of a behavior rather than how long or how frequently it occurs throughout the entire observation period.

In contrast, frequency and duration measurements are examples of continuous measurement. Frequency counts the number of times a behavior occurs in a specified time frame, and duration measures the total time a behavior is engaged in during the observation period. Latency, on the other hand, measures the time that elapses between a stimulus and the onset of the behavior, which also falls under continuous measurement. Hence, partial interval recording is the only method listed that fits within the framework of discontinuous measurement.