A Comparison of Equal-Appearing Interval Scaling and Direct Magnitude Estimation of Nasal Voice Quality

Zraick, Richard I.; Liss, Julie

doi:10.1044/jslhr.4304.979

Cited by 71 publications

(65 citation statements)

References 50 publications

(59 reference statements)

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“…Hence, the equal-appearing interval scaling may not be as effective to rate nasality, regardless of the use of prior training. Some authors argue that nasality would be better rated with ratio-based scales, as the direct magnitude estimation and the visual analog scaling, which enable more valid and reliable classifications for the perception of nasality (6,30) . However, there are authors who consider the direct magnitude estimation to be impractical for the clinical setting, because the speech sample to be classified should be compared with a standard sample (9) .…”

Section: Discussionmentioning

confidence: 99%

Influência do treinamento dos avaliadores no julgamento perceptivo da hipernasalidade

Oliveira

Scarmagnani

Fukushiro

et al. 2016

CoDAS

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RESUMO Introdução Alto índice de concordância no julgamento perceptivo da hipernasalidade entre diferentes avaliadores é difícil de ser alcançado. O treinamento prévio dos avaliadores e a padronização dos critérios de análise podem ser estratégias eficazes para minimizar o efeito da subjetividade do julgamento perceptivo e aumentar a concordância entre os avaliadores. Objetivo Investigar a influência do treinamento prévio sobre a concordância entre diferentes avaliadores no julgamento perceptivo da hipernasalidade. Métodos Três fonoaudiólogas experientes analisaram 77 amostras de fala, de indivíduos com fissura de palato reparada. Na primeira etapa, as avaliadoras classificaram a hipernasalidade utilizando seus próprios critérios, em uma escala de quatro pontos. Setenta dias depois, foram submetidas a um treinamento para a definição das amostras utilizadas como referências para o julgamento na etapa seguinte. Na segunda etapa as avaliadoras julgaram as mesmas amostras e classificaram a hipernasalidade com a mesma escala, utilizando como critério as referências definidas no treinamento. Índices de concordância intra e interavaliadores foram estabelecidos nas duas etapas utilizando-se o coeficiente Kappa e foram comparados por meio do teste Z. Resultados Os índices de concordância intra-avaliadores obtidos entre as duas etapas variou de 0,38 para 0,92, com diferença estatisticamente significativa para uma das avaliadoras (p=0,004). O índice de concordância quanto ao grau de hipernasalidade obtido entre as três avaliadoras após o treinamento (0,54) foi significativamente maior do que o obtido antes do treinamento (0,37; p=0,044). Conclusão O treinamento das avaliadoras e a definição de critérios para a classificação da hipernasalidade levam ao aumento do índice de concordância intra e interavaliadores.

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Section: Discussionmentioning

confidence: 99%

Influência do treinamento dos avaliadores no julgamento perceptivo da hipernasalidade

Oliveira

Scarmagnani

Fukushiro

et al. 2016

CoDAS

View full text Add to dashboard Cite

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“…These measures generally require listeners to quantify their qualitative judgments of a speaker's intelligibility by assigning a number to what they heard. Variations on this method include use of equal-appearing interval scales [2,[8][9][10] , direct magnitude estimation (DME) [10][11][12][13][14] , and percent estimates [4,15] . One of these subjective measures, percent estimates, was of interest for the present study.…”

Section: Subjective Measure Of Intelligibilitymentioning

confidence: 99%

Estimating the Intelligibility of Speakers with Dysarthria

Hustad¹

2006

Folia Phoniatr Logop

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Many speakers with dysarthria have reduced intelligibility[,] and improving intelligibility is often a primary intervention objective. Consequently, measurement of intelligibility provides important information that is useful for clinical decision-making. The present study compared two different measures of intelligibility obtained in audio-only and audio-visual modalities for 4 different speakers with dysarthria (2 with mild-moderate dysarthria; 2 with severe dysarthria) secondary to cerebral palsy. A total of 80 college-aged listeners provided word-by-word transcriptions and made percent estimates of intelligibility which served as dependent variables. Group results showed that transcription measures were higher than percent estimates of intelligibility overall. There was also an interaction between speakers and measures of intelligibility, indicating that the difference between transcription scores and percent estimates varied among individual speakers. Results revealed a significant main effect for presentation modality, with the audio-visual modality having slightly higher scores than the audio-only modality; however, presentation modality did not interact with speakers or with measures of intelligibility. Results suggest that standard clinical measurement of intelligibility using orthographic transcription may be more consistent than the use of more subjective percent estimates.

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“…Listeners then provide a numerical rating value for speech samples relative to the specified perceptual attribute. Recent attention to DME has related to whether various attributes can be scaled validly with interval or ratio scaling procedures [3][4][5] as well as identifying the standard with which listeners compare the given stimulus. 5 DME has received attention in several investigations because most studies in the literature traditionally have used equal appearing interval (EAI) scales.…”

Section: Introductionmentioning

confidence: 99%