title: The effect of procedural variations on the S/Z ratio of adults.
abstract: The effect of elicitation order, number of required trials, and selection of /s/ and /z/ values utilized to calculate the s/z ratio in adult subjects was examined. Results support the conclusion that a single phoneme production trial is a valid and efficient method for obtaining the s/z ratio. Procedural and clinical implications are discussed.
authors.affiliation: Division of Communication Disorders, University of North Texas, Denton 76203.
authors.forename: G W
authors.initials: GW
authors.lastname: Larson
authors.forename: P B
authors.initials: PB
authors.lastname: Mueller
authors.forename: P A
authors.initials: PA
authors.lastname: Summers
mesh_terms: D000328:Adult; D006801:Humans; D007818:Laryngeal Diseases / Q000175:diagnosis*; D010700:Phonetics; D012016:Reference Values; D013068:Speech Production Measurement / Q000706:statistics & numerical data*; D014833:Voice Quality