SLIDE 22 10/24/2016 22
Using the MarkeTrak VIII data: The impact of verification and validation:
Verification and validation not
conducted: patient return rate=57% 57% of 80 x 1.8 = 81 hearing aids
Verification and validation conducted:
patient return rate=84% 84% of 80 x 1.8 = 120 hearing aids Does probe-mic verification influence patient perception?
(Amlani, Pumford, and Gessling, 2016)
The authors collected data on three groups of 20 (n = 60) adult listeners with mild to moderately-severe sensorineural hearing loss: – Group 1: Experienced users of amplification (> 1 year of use, 8 hours of daily use) – Group 2: Owner of hearing aids who did not use their devices on a frequent basis – Group 3: Non-users who experienced hearing difficulties and were interested in a trial period.
Ten listeners in each group were fitted using the manufacturer’s First-Fit NAL-NL2/Quick-Fit procedure, while the remaining 10 listeners in each group were fitted using a standard probe- microphone verification protocol that included REARs fitted to multiple levels and MPO verification.
Does probe-mic verification influence patient perception?
(Amlani, Pumford, and Gessling, 2016)
During the fitting process with each group, listeners had an
- pportunity to influence the final settings by rating the comfort and
clarity of the experimental devices until a rating of 8 on a 10 point scale (i.e., 1 = lowest 10 = highest) was achieved while listening to a passage of continuous discourse.
During and after the fitting process, each subject was counseled on the procedures being performed by the same experienced clinician.
The participants provided survey responses regarding (1) willingness-to-pay (WTP), price anchored at $250, for professional services, and (2) a Perceived Value Measurement designed to assess a respondent’s attitude and behavior toward professional services assessed in five dimensions: perceived quality, perceived value, behavioral intent, emotion, and price.
