Which type of measurement would be best for tracking the frequency of a specific behavior over time?

The best type of measurement for tracking the frequency of a specific behavior over time is continuous measurement. This approach involves recording every instance of the behavior as it occurs, allowing for an accurate count of how many times the behavior happens in a given period. Continuous measurement is particularly effective for behaviors that are discrete and have clear onsets and offsets, making it possible to compile detailed records that can show trends and patterns over time.

In contrast, partial interval recording captures whether a behavior occurred at any time during a specific interval but does not provide information on the total number of occurrences. Whole interval recording only counts the behavior if it occurs throughout the entire interval, likely underestimating its actual frequency. Momentary time sampling assesses whether a behavior is occurring at specific moments but does not gather comprehensive data on frequency, making it less suitable for cases where understanding the number of occurrences is crucial. Thus, continuous measurement is the superior choice for effectively tracking the frequency of a behavior.