Stenger Test - Interacoustics Affinity 2.0 Additional Information

3) Clarif y the test procedure to the patient. Explain that he/she will now hear tones in both ears. The
assignment is to determine when the two tones sound equal in intensity/loudness
4) The ABLB is perf ormed at f requencies where recruitment is assumed. Set the intensity level on the
impaired ear to 20 dB above the pure tone threshold using channel 2.
5) Adjust the intensity level in the better ear until the perceived loudness is identical to the impaired ear
using channel 1.
6) Use the arrow buttons on the PC keyboard or the dedicated audiometry keyboard to set the f requency
and intensity. If pref erred choose Mouse operated audiometry
the mouse. Lef t click to stimulate and right click to store the threshold.
7) The ABLB/Fowler test cannot be saved. Results must theref ore be noted manually. The reporting/
comment f unction in the AC440 sof tware may also be of help.

1.7.13 Stenger test

The Stenger test is applied when a patient is suspected of f eigning/faking a hearing loss and is based on the
auditory phenomenon, "The Stenger Principle" which states that only the louder of two similar tones
presented to both ears at the same time will be perceived. As a rule, it is having been recommended to
perf orm the Stenger test in cases of unilateral hearing losses or signif icant asymmetries.
Required items:
The Af f inity hardware
• 2.0
• Licensed AC440 Audiometry module within your Af f inity
Calibrated Headphones or insert phones
•
A patient response button
•
Test procedure for tone Stenger:
1) Open the AC440 module.
Choose settings f or Stenger using the input and output f or channel 1 and channel 2 as illustrated
2)
below:
Note: Man (Manual) and if pref erred Multi Pulse should be selected f or channel 1 and Sim
(Simultaneous) f or channel 2.
3) Typically, the instruction to the patient is not dif f erent than with normal audiometry. The patient does
not need to be inf ormed that stimuli are presented at both ears simultaneously.
4) Use channel 2 f or presenting tones to the better ear and set the intensity level to 20 dB above the
threshold.
Use channel 1 f or the poorer ear and set the intensity level 20 dB below the level of the good ear.
5)
D-0004576-Q – 2022/05
Affinity/Equinox2.0 – Additional Information
and perf orm the test using only
2.0 hardware
Page 45