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The slope of the psychometric function is evaluated in normal and impaired listeners, and is found to give a useful guide to the required number of trials. The single-interval up\/down procedure is subsequently compared with two other popular traditional methods (two-interval forced-choice, two-down\/one-up and maximum-likelihood procedures) and is shown to yield similar thresholds and be more efficient.<\/jats:p>","DOI":"10.1121\/1.3238248","type":"journal-article","created":{"date-parts":[[2009,12,3]],"date-time":"2009-12-03T09:11:54Z","timestamp":1259831514000},"page":"2570-2579","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":51,"title":["A simple single-interval adaptive procedure for estimating thresholds in normal and impaired listeners"],"prefix":"10.1121","volume":"126","author":[{"given":"Wendy","family":"Lecluyse","sequence":"first","affiliation":[{"name":"University of Essex Department of Psychology, , Wivenhoe Park, Colchester, Essex CO4 3SQ, United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ray","family":"Meddis","sequence":"additional","affiliation":[{"name":"University of Essex Department of Psychology, , Wivenhoe Park, Colchester, Essex CO4 3SQ, United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"231","published-online":{"date-parts":[[2009,11,5]]},"reference":[{"key":"2023073021463764300_c1","author":"ANSI S3.21-1978","year":"1997"},{"key":"2023073021463764300_c2","doi-asserted-by":"crossref","first-page":"433","DOI":"10.1044\/jshr.3303.433","article-title":"A comparison of psychometric functions for detection in normal-hearing and hearing-impaired listeners","volume":"33","year":"1990","journal-title":"J. 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