Final answer:
The most efficient method of measurement would be frequency measurement, which involves counting the number of times a behavior occurs within a specific period of time.
Step-by-step explanation:
The most efficient method of measurement for the dependent variables (accuracy and inter-response time) in Anna Prentice's experiment would likely be frequency measurement. Frequency measurement involves counting the number of times a behavior occurs within a specific period of time. In this experiment, measuring the frequency of accurate responses and the frequency of inter-response times would provide a straightforward and efficient way to analyze the effects of the disruptor on response persistence.
For example, Anna could count the number of accurate responses made by each participant during a specific period of time, or she could calculate the average number of accurate responses per minute. Similarly, she could count the number of inter-response times above a certain threshold, such as 5 seconds, and calculate the average number of longer inter-response times per minute.