Quote:
Originally Posted by ismi
"Percent deaf" is, as far as I can tell, a misnomer; often, people just use their SRTs. More accurate would be to divide your SRT by 120 and convert that to a percentage, but even that is sort of a useless number, I think. My guess is that it's popular because most people don't know what it means to be moderately/severely/profoundly/completely deaf, but people are (sort of) familiar with percents.
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Even with normally hearing people there is no such thing as 100% hearing. They have a range of hearing that differs from person to person. Some people have very sensitive hearing and others not but both are normally hearing. I agree it's popular because people can readily understand percentages as a way of measuring things but find it more difficult to understand about frequencies and decibels.