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Reliability and Validity of an Instrument to Measure Quality of Life in the Dysarthric Speaker
| Content Provider | Semantic Scholar |
|---|---|
| Author | Piacentini, Valentina Zuin, Annalisa Cattaneo, Davide Schindler, Antonio |
| Copyright Year | 2011 |
| Abstract | Objective: To develop a tool to measure quality of life (QOL) in the dysarthric speaker (QOL-DyS). Patients and Method: The study consisted of two phases: scale development and item reduction (phase 1), and reliability and validity analysis (phase 2). The 100-item ‘Dysarthria from the Point of View of the Dysarthric Patient’ questionnaire was used for item development; the data from 50 dysarthric patients were measured for internal consistency and the 40-item QOL-DyS was developed. A second group of 50 dysarthric patients and 30 control participants were recruited for phase 2. Internal consistency and test-retest reliability were analyzed through Cronbach’s α coefficient and intraclass correlation coefficient (ICC), respectively. The scores obtained from the pathological and the control group were compared using the Mann-Whitney test. Finally, the correlation between the QOL-DyS and dysarthria severity was assessed using the Spearman test. Results: An excellent internal consistency (α = 0.90) and test-retest reliability (ICC = 0.98, 95% CI: 0.97–0.99) were found; the score difference between the dysarthric and control groups was significant (p < 0.001). The QOL-DyS scores correlated positively with the severity of dysarthria (r = 0.43). Conclusion: The QOL-DyS is a reliable and valid tool to assess QOL in patients with dysarthria. |
| Starting Page | 289 |
| Ending Page | 295 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.1159/000322800 |
| PubMed reference number | 21474942 |
| Journal | Medline |
| Volume Number | 63 |
| Alternate Webpage(s) | http://www.metodosam.it/wp-content/uploads/2012/10/QOL-DYS.pdf |
| Alternate Webpage(s) | https://doi.org/10.1159/000322800 |
| Journal | Folia Phoniatrica et Logopaedica |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
