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Inter and intra-rater reliability in subjective visual assessment of dysarthric patients

Grant number: 12/23587-4
Support type:Regular Research Grants
Duration: June 01, 2013 - May 31, 2015
Field of knowledge:Health Sciences - Speech Therapy
Principal researcher:Karin Zazo Ortiz
Grantee:Karin Zazo Ortiz
Home Institution: Escola Paulista de Medicina (EPM). Universidade Federal de São Paulo (UNIFESP). Campus São Paulo. São Paulo , SP, Brazil

Abstract

Assessing and diagnosing dysarthric disorders entails the study of five motor bases. These bases can be assessed by means of auditory perception and/or visual assessment, as well as through instrumental measurements.Objective:To analyze intra and inter-rater reliability in subjective visual assessment of dysarthric speakers.Methods:A cross-sectional study will be conducted.An initial sample of 60 speakers, comprising 30 dysarthrics and 20 adults without communication deficits, will be assessed.All participants will be submitted to those tasks from the Dysarthria Protocol (Ortiz, 2010)involving subjective visual assessment. The sections of the protocol analysed in this study shall include items from the structural assessment and articulationon verbal and non-verbal tasks.All tasks will be video recorded.The subjective visual assessment will be applied by two speech therapists experienced inacquired neurological speech disorders. Raters will be blinded topatient diagnosis and to oneanother's assessments.Eachrater will assess all 60 volunteers, whose videos shall be presented in random order. After three months, these samples shall be re-presented for rater reassessment and determination of intra-rater reliability. For statistical analyses, Kappa's tests are to be applied in cases of reasonable concordance, even if below 70%. The intraclass correlation coefficient will be applied to attain an estimateof proportion of total variability in measurements due to inter-individual variations. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
KARIN ZAZO ORTIZ; NATALIA CASAGRANDE BRABO; THAIS SOARES C. MINETT. Distúrbios sensórios-motores da fala na doença de Parkinson. Dement. Neuropsychol., v. 10, n. 3, p. 210-216, . (12/23587-4)

Please report errors in scientific publications list by writing to: cdi@fapesp.br.