What does the threshold results of a biological calibration need to agree within of baseline?

The threshold results of a biological calibration need to agree within +/- 5 dB of the baseline because this range is typically considered acceptable for ensuring accuracy and reliability in audiometric testing. A margin of +/- 5 dB is tight enough to minimize variability due to testing conditions, equipment differences, or individual variability among listeners participating in the calibration. Consistency within this range is essential for the integrity of the audiometric data collected and for ensuring that test results are clinically valid. This standard helps practitioners confidently interpret hearing test outcomes, which directly inform diagnoses and treatment plans.