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Back to Basics: Speech Audiometry Janet R. Schoepflin ...
https://www.audiologyonline.com/articles/back-to-basics-speech-audiometry-6828#:~:text=If%20the%20purpose%20of%20the%20testing%20is%20for,in%20quiet%20or%20in%20a%20background%20of%20noise.
Psychometric functions – Introduction to Sensation and ...
https://pressbooks.umn.edu/sensationandperception/chapter/psychometric-functions/
The slope of the psychometric function (for a single stimulus level) indicates the level of perceptual noise, or the variability of the responses. So when comparing different population groups, and one tends to have higher thresholds than the other, we can use the slope to tell whether the difference is caused by reduced response amplitude or increased noise (Park, …
Relation between slopes of word recognition …
https://pubmed.ncbi.nlm.nih.gov/11214979/
The mean function for the W-22 words was steeper (3.1%/dB) than the function for the PB-50 words (1.9%/dB). This evaluation of the individual words demonstrates the direct relation between variability of the test items and the slope of the mean psychometric function.
Back to Basics: Speech Audiometry Janet R. Schoepflin ...
https://www.audiologyonline.com/articles/back-to-basics-speech-audiometry-6828
The psychometric or performance-intensity function plots speech performance in percent correct on the Y-axis, as a function of the level of the speech signal on the X-axis. This is important because testing at only one level, which is fairly common, gives us insufficient information about the patient's optimal performance or what we commonly ...
The Effect of the Slope of the Psychometric Function on ...
https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=7841&context=etd
psychometric function emerged. Standardization was necessary for audiologists to compare speech audiometry testing results between clinics (Hirsh et al., 1952). Early forms of speech audiometry testing were available in the 19th century, when individuals were asked to repeat words or sentences that were whispered or spoken at varying distances.
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