What method records a response only if it occurs at the end of a specified interval?

The method that records a response only if it occurs at the end of a specified interval is momentary time sampling. This approach involves observing whether a behavior is occurring at the exact moment that a predetermined time interval ends. If the behavior is happening at that specific moment, it is recorded as occurring; otherwise, it is noted as not occurring. This technique is particularly useful in situations where continuous observation is impractical, allowing for a quicker assessment of behavior over time while still providing data on whether the behavior was present at a specific point.

In contrast, continuous recording involves documenting every instance of the behavior throughout an observation period, while whole interval recording requires the behavior to occur throughout the entire duration of an interval, and partial interval recording counts the behavior if it occurs at any point during the interval. Each of these methods serves different purposes and has different implications for how behavior data is collected and analyzed.