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Effect of response method in participants with sensorineural hearing loss

Rajkishor Mishra, Preeti Sahu, Debadatta Mahallik.

Background: Aim of the study was to compare the speed of response, false-alarm rate, and subject preference of different response methods i.e. raising a hand, using response switch, and oral response mode for measuring pure-tone thresholds.
Methods: Forty five participants (female-21 and 24 male) were included in the study with sensorineural hearing loss of various degree. Response method order was randomly assigned to 3 different sessions. Air-conduction thresholds were mea¬sured thrice for each participant in octave intervals between 250 Hz and 8000 Hz. The 2nd and 3rd session were performed for different response method on a different day but within 2 weeks of the 1st session.
Results: Difference in the time was noted when compared with the extent of time required to complete the test for each response method. On an average, using the push¬button method took 3.02 to 3.42 minutes less than using hand-raise or verbal response methods. There was also a significant participant preference for using the response button. No significant difference between response method for thresh¬old level and number of false positives (P = 0.15) was found.
Conclusion: This study supports the use of the response button when measuring auditory thresholds for sensorineural hearing loss.

Key words: Pure tone threshold, Oral response, False alarm rate, Response method

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