A user-operated audiometry method based on the maximum likelihood principle and the two-alternative forced-choice paradigm
Related Experiment Video
Updated: May 3, 2026
A Two-interval Forced-choice Task for Multisensory Comparisons
Published on: November 9, 2018
Jesper Hvass Schmidt1, Christian Brandt, Ellen Raben Pedersen
1* Department of Audiology, Odense University Hospital, University of Southern Denmark , Odense , Denmark.
Objective:
To create a user-operated pure-tone audiometry method based on the method of maximum likelihood (MML) and the two-alternative forced-choice (2AFC) paradigm with high test-retest reliability without the need of an external operator and with minimal influence of subjects' fluctuating response criteria. User-operated audiometry was developed as an alternative to traditional audiometry for research purposes among musicians.
Design:
Test-retest reliability of the user-operated audiometry system was evaluated and the user-operated audiometry system was compared with traditional audiometry.
Study Sample:
Test-retest reliability of user-operated 2AFC audiometry was tested with 38 naïve listeners. User-operated 2AFC audiometry was compared to traditional audiometry in 41 subjects.
Results:
The repeatability of user-operated 2AFC audiometry was comparable to traditional audiometry with standard deviation of differences from 3.9 dB to 5.2 dB in the frequency range of 250-8000 Hz. User-operated 2AFC audiometry gave thresholds 1-2 dB lower at most frequencies compared to traditional audiometry.
Conclusions:
User-operated 2AFC audiometry does not require specific operating skills and the repeatability is acceptable and similar to traditional audiometry. User operated 2AFC audiometry is a reliable alternative to traditional audiometry.
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