How many times should a person respond at the same intensity level during the Hughson-Westlake procedure for it to be considered valid?

In the Hughson-Westlake procedure, a recognized method for determining hearing thresholds, the criterion for a valid response is that the individual must respond correctly at the same intensity level two out of three times. This approach ensures reliability in hearing assessments, as it accounts for potential variability in responses caused by factors such as attention, fatigue, or random fluctuations in hearing ability. By requiring this consistency in responses, audiologists can confidently establish the threshold at which a person can hear sounds of a given frequency. This process is crucial to obtain accurate and reproducible results in hearing evaluation.