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Hearing Aids: Clarity or Controversy?

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1.  To determine audibility of the speech signal when fitting hearing aids, the best approach is to:
  1. use probe microphone measurements with a validated prescriptive fitting approach
  2. manufacturer first fit
  3. simulated measurements using average RECDs
  4. use factory fit, ask the patient how it sounds and adjust accordingly
2.  Aazh and Moore (2007) found that fitting hearing aids to NAL-NL1 using only programming software from four different manufacturers with no further adjustments resulted in:
  1. 50% of fittings were within +/- 10 dB of the actual NAL-NL1 target
  2. 80% of fittings were within +/- 10 dB of the actual NAL-NL1 target
  3. 100% of fittings were within +/- 10 dB of the actual NAL-NL1 target
  4. less than 40% of all fittings were within +/- 10 dB of the actual NAL-NL1 target
3.  An evidence-based approach to using directional microphones in hearing aids means an audiologist should:
  1. measure the effect of the directional microphones
  2. train patients on how to use directional microphones
  3. obtain feedback from patients on the benefit they receive from their directional microphones
  4. all of the above, repeated as needed
4.  The presenter's bottom line on DNR indicates
  1. that practitioners may be giving conflicting information on whether DNR improves speech perception ability
  2. industry reports DNR provides easier listening
  3. two reports have suggested the possibility of a small improvement in SNR-50
  4. all of the above
5.  Three types of frequency lowering technology are:
  1. frequency cancellation, frequency reduction, frequency repository
  2. frequency compression, frequency transposition, frequency cueing
  3. frequency modulation, frequency facilitation, frequency management
  4. none of the above
6.  For music perception, one study showed patients prefer:
  1. less or no frequency compression in paired comparisons
  2. more frequency compression in paired comparisons
  3. there was no difference between maximum frequency compression v. no frequency compression
  4. patients couldn't tell the difference between comparisons
7.  The data for the benefit of frequency lowering in hearing aids are:
  1. all favorable, in support of the benefit of frequency lowering
  2. all unfavorable, not supporting the use of frequency lowering
  3. mixed
  4. there is no data available yet
8.  In terms of evidence-based practice, one conundrum clinicians face is:
  1. a patient may love a certain feature, but we may not be able to measure a benefit
  2. a patient may indicate they hate a certain feature although we can measure a significant effect from the feature
  3. both A and B pose clinical challenges
  4. there are no conundrums with evidence based practice
9.  In terms of evidence-based practice, evidence may include
  1. data
  2. clinical experience
  3. expert opinion
  4. all of the above
10.  To follow EBP, clinicians are advised:
  1. to imitate the practices of their supervisors
  2. to weigh the evidence, and justify clinical decision making based on best available evidence
  3. to do things the way they learned in school
  4. clinical judgement should be best on whatever is easiest, fastest and most profitable