Journal ArticleDOI
The reliability and validity of patient self-rating of their own voice quality
TLDR
Preliminary data is provided on the reliability and validity of dysphonic patients rating their own voice quality and on the basis of this data, patients believe the voice quality ratings are reliable and valid.Abstract:
Objectives: To provide preliminary data on the reliability and validity of dysphonic patients rating their own voice quality.
Design: Prospective reliability/validity assessment of voice ratings in dysphonic patients.
Setting: The Royal Free Hampstead NHS Primary Care Trust.
Participants: Thirty-five adult dysphonia patients recruited from ENT referrals to a speech and language therapy department. Exclusion criteria were (i) a hearing impairment which may affect auditory discrimination and (ii) a diagnosis of cognitive impairment which may affect task comprehension.
Main outcome measures: Patient intra-rater reliability was assessed by test–retest ratings, using G (Grade), R (Rough), B (Breathy), A (Asthenic), S (Strained) (GRBAS). Validity was assessed by comparing (i) patient–clinician inter-rater reliability, (ii) patients’ GRBAS ratings with their Vocal Performance Questionnaire (VPQ) responses.
Result: (i) Patients had lower intrarater reliability than clinicians (for G of GRBAS, kappa = 0.51 versus 0.74); (ii) patients consistently rated their voices more severely than clinicians (for G of GRBAS, mean rating = 1.4 versus 1.0); (iii) clinician–patient inter-rater agreement was no better than chance (paired t-test, all P 0.4, P < 0.05).
Conclusions: Patients appear to have good validity and consistency using GRBAS as a self-perception tool. However, validity measured in terms of agreement with clinician ratings is poor. Voice patients may rate what they perceive rather than what they hear. Disagreement between patient and clinician ratings has implications for therapy aims, prognosis, patient expectations and outcomes. Where disagreement persists, the clinician may have to determine whether therapy priorities need redesigning to reflect patients’ perceived needs, or to evaluate whether patient perceptions and expectations are unrealistic.read more
Citations
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Journal ArticleDOI
Measuring voice outcomes: state of the science review.
TL;DR: Routine voice outcome measurement should include an expert rating of voice quality and a short self-reporting tool (either the Vocal Performance Questionnaire or the V vocal Handicap Index 10), which have high validity, the best reported reliability to date, good sensitivity to change data and excellent utility ratings.
Journal ArticleDOI
Perception of Voice in the Transgender Client
TL;DR: In this article, the authors evaluated the relationship between the fundamental frequency (F 0 ) of speech and patients' happiness with their voice and found that a significant relationship between F 0 and participant happiness could not be demonstrated.
Journal ArticleDOI
The role of experience on judgments of dysphonia.
TL;DR: Although there is no systematic effect of listener experience on judgments of dysphonia, individuals with dysphonia appear to self-rate their voices using different perceptual strategies than other listeners.
Journal ArticleDOI
The effect of listener experience and anchors on judgments of dysphonia.
TL;DR: Listeners systematically shift judgments of voice quality in response to auditory anchors, which reduce interrater variability and may improve agreement across some types of listeners.
References
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Book
Practical statistics for medical research
TL;DR: Practical Statistics for Medical Research is a problem-based text for medical researchers, medical students, and others in the medical arena who need to use statistics but have no specialized mathematics background.
Journal ArticleDOI
The voice handicap index (VHI) : Development and validation
Barbara H. Jacobson,Alex F. Johnson,Cynthia Grywalski,Alice K. Silbergleit,Gary P. Jacobson,Michael S. Benninger,Craig W. Newman +6 more
TL;DR: In this paper, the authors developed a statistically robust Voice Handicap Index (VH-Index) to quantify the psychosocial consequences of voice disorders, which was used to measure the psychOSocial consequences associated with voice disorders.
Journal ArticleDOI
The discrimination of speech sounds within and across phoneme boundaries.
TL;DR: Whether or not, with similar acoustic differences, a listener can better discriminate betweenSounds that lie on opposite sides of a phoneme boundary than he can between sounds that fall within the same phoneme category is examined.
Journal ArticleDOI
Validation of an instrument to measure voice-related quality of life (V-RQOL).
TL;DR: An instrument for measuring V-RQOL is developed and validated using a population of 109 voice and 22 non-voice patients and performs well in tests of reliability, validity, and responsiveness, and it carries a low burden.