title: GRBAS and Cape-V scales: high reliability and consensus when applied at different times.
abstract: OBJECTIVE
  To evaluate whether the overall dysphonia grade, roughness, breathiness, asthenia, and strain (GRBAS) scale, and the Consensus Auditory Perceptual Evaluation-Voice (CAPE-V) scale show the same reliability and consensus when applied to the same vocal sample at different times.
  
  
  METHODS
  Observational cross-sectional study.
  
  
  METHODS
  Sixty subjects had their voices recorded according to the tasks proposed in the CAPE-V scale. Vowels /a/ and /i/ were sustained between 3 and 5 seconds. Reproduction of six sentences and spontaneous speech from the request "Tell me about your voice" were analyzed. For the analysis of the GRBAS scale, the sustained vowel and reading tasks of the sentences was used. Auditory-perceptual voice analyses were conducted by three expert speech therapists with more than 5 years of experience and familiar with both the scales.
  
  
  RESULTS
  A strong correlation was observed in the intrajudge consensus analysis, both for the GRBAS scale as well as for CAPE-V, with intraclass coefficient values ranging from 0.923 to 0.985. A high degree of correlation between the general GRBAS and CAPE-V grades (coefficient=0.842) was observed, with similarities in the grades of dysphonia distribution in both scales. The evaluators indicated a mild difficulty in applying the GRBAS scale and low to mild difficulty in applying the CAPE-V scale. The three evaluators agreed when indicating the GRBAS scale as the fastest and the CAPE-V scale as the most sensitive, especially for detecting small changes in voice.
  
  
  CONCLUSIONS
  The two scales are reliable and are indicated for use in analyzing voice quality.
authors.affiliation: Department of Physiotherapy, Communication Science & Disorders, Occupational Therapy, School of Medicine, University of São Paulo, São Paulo, Brazil. knemr@usp.br
authors.forename: Katia
authors.initials: K
authors.lastname: Nemr
authors.forename: Marcia
authors.initials: M
authors.lastname: Simões-Zenari
authors.forename: Gislaine Ferro
authors.initials: GF
authors.lastname: Cordeiro
authors.forename: Domingos
authors.initials: D
authors.lastname: Tsuji
authors.forename: Allex Itar
authors.initials: AI
authors.lastname: Ogawa
authors.forename: Maysa Tibério
authors.initials: MT
authors.lastname: Ubrig
authors.forename: Márcia Helena Moreira
authors.initials: MH
authors.lastname: Menezes
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D032921:Consensus; D003430:Cross-Sectional Studies; D055154:Dysphonia / Q000175:diagnosis* / Q000503:physiopathology / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D011237:Predictive Value of Tests; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D013061:Speech Acoustics; D013067:Speech Perception; D013068:Speech Production Measurement / Q000379:methods*; D013997:Time Factors; D014833:Voice Quality; D055815:Young Adult