In which type of measurement is a behavior considered recorded only if it is observed throughout an entire predetermined interval?

Whole Interval Recording is a method of measurement designed to evaluate the occurrence of a behavior during a specified time interval. In this approach, the observation is recorded as a positive if the target behavior occurs for the complete duration of the interval. For instance, if the interval lasts for 10 seconds and the behavior is observed for the entire 10 seconds, it is marked as having occurred.

This measurement method is particularly useful in situations where understanding the continuous engagement or the sustained presence of a behavior is important, such as monitoring a child's attention during a task. Whole interval recording may lead to underestimating the actual frequency of a behavior since it only counts instances where the behavior persists throughout the entire interval, making it different from other methods, which may count partial occurrences or instantaneous observations.