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20Q: What Exactly is “Normal” Hearing?

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1.  What is the term used to describe a sample distribution where the mean, mode, and median are equivalent? Normal Skewed Average None of the Above

2.  What is the dBHL level of hearing that reflects average hearing sensitivity in a “healthy” adult sample and is described in historical literature as “average” normal hearing threshold? 0 15 25 None of the above

3.  The 1942 AMA formula for percent hearing loss for useful hearing was in part formulated in response to what issue? Calibration Medical-legal Defining audiometric zero None of the above

4.  Who authored the scale for categorizing hearing loss that is commonly referenced and published in the 2nd edition of the Katz Textbook? Goodman Mueller Jerger Carhart

5.  Which of the following are considerations in defining cutoffs for hearing loss severity? Perceived hearing difficulty Statistics Auditory function All of the above