for people ages 50-90 (full criteria)
healthy people welcome
study started
estimated completion



Fifty adults with mild to moderately severe sensorineural hearing loss will be fit with hearing amplification using two adjustment techniques. For the "audiologist fitting" technique, a licensed audiologist will adjust the hearing device using the standard of care procedures which include adjustment and verification of output to match prescribed targets (NAL-NL2) and subsequent fine tuning to optimize adjustments based on participant feedback. The second technique is "user-adjustment" of the device consisting of adjustment to overall level, high-frequency boost, and low-frequency cut by the participant while listening to speech. A cross-over design will be used in which half the participants are initially fit using the audiologist technique and the other half are initially fit using the user self-adjustment technique. Following a seven-day field trial, participants will return to the lab and the aids will be reset use the other technique. Participants will be blinded to the condition. During each seven-day field trial, users will have access to a volume control, Following the end of the two trials, participants will return to the lab for outcome assessment.


Hearing Loss hearing aid self-fitting Hearing aid fitting technique- audiologist or user-adjusted Audiologist-adjusted first User-adjusted first


You can join if…

Open to people ages 50-90

  • bilateral hearing loss with a minimum of 40 dB HL thresholds at 2000 Hz
  • English speaking

You CAN'T join if...

  • Score less than 21 on the MoCa (Montreal Cognitive Assessment)
  • Evidence of conductive or retrocochlear pathology


not yet accepting patients
Start Date
Completion Date
San Diego State University
Study Type
Last Updated