Which measurement system records each instance of a behavior and yields a frequency or rate score?

• A. Time sampling.
• B. Event (frequency) recording.
• C. Duration recording.
• D. Latency measurement.

Answer: (B)

This question tests how measurement systems capture how often a behavior happens. Recording each instance of a behavior and turning that into a frequency or rate score is event recording, also called frequency recording. It involves noting every time the behavior occurs, so you can report the total number of occurrences (frequency) and, if you divide by the observation time, the rate (occurrences per unit time). This approach works best for discrete, clearly bounded behaviors that occur repeatedly in a session.

Time sampling estimates whether the behavior occurred during set intervals, yielding a proportion of intervals with the behavior rather than an exact count of each instance. Duration recording focuses on how long the behavior lasts, not how many times it occurs. Latency measurement tracks the time from a stimulus to the start of the behavior, not the frequency of occurrences.