title: Measurement of speech disfluency through magnitude estimation and interval scaling.
abstract: The purpose was to assess whether equal-appearing interval or magnitude-estimation scaling resulted in a data set with a closer correlation to the physical stimuli, made up of speech samples with varying amounts of disfluency. 20 young adults completed two tasks. In Task 1, subjects used a 7-point equal-appearing interval scale to rate the disfluency of 10 speech samples having varying within sentence pause, presented randomly at 65 dB SPL. In Task 2, subjects used magnitude-estimation scaling to rate these stimuli, presented in a randomized order. Analysis showed significantly high correlations for both scaling techniques and the speech stimuli (Spearman rho=.90 and 1.00, respectively). It appears that subjects can use either scaling technique to rate accurately varied speech disfluency.
authors.affiliation: California State University, Chico 95929-0350, USA. dmccoll@csuchico.edu
authors.forename: Douglas
authors.initials: D
authors.lastname: McColl
authors.forename: Donald
authors.initials: D
authors.lastname: Fucci
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D013061:Speech Acoustics; D013064:Speech Disorders / Q000175:diagnosis* / Q000523:psychology; D013067:Speech Perception; D013068:Speech Production Measurement / Q000706:statistics & numerical data*; D013342:Stuttering / Q000175:diagnosis / Q000523:psychology