CoDAS
https://codas.org.br/article/doi/10.1590/2317-1782/e20240138en
CoDAS
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Intelligibility in Context Scale: validity of the Brazilian-Portuguese version

Matheus Francoy Alpes; Julia Cipolato; Ana Rita Valente; Jacqueline Aquino do Nascimento; Patrícia Pupin Mandrá; Marisa Lousada

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Abstract

ABSTRACT: Purpose: The aim of the study was to validate the Brazilian-Portuguese version of the Intelligibility in Context Scale (ICS-BP).

Methods: Sixty children (mean age in months = 55.05, SD = 4.2), 15 with parental or teacher concerns regarding their speech and 45 without concerns, underwent assessment using the phonology subtest of ABFW – Child Language Test. The percentage of consonants correct (PCC) was calculated and parents completed the ICS to evaluate their children's intelligibility with various communication partners. Descriptive statistics were obtained. Kruskal-Wallis and Spearman’ tests were used for independent group comparisons and correlation calculations, respectively. Linear regression models were established to predict PCC. Internal consistency was calculated using Cronbach's alpha. A Receiver Operating Characteristic (ROC) was used to analyse sensitivity and specificity. Significance was considered for p-values under 0.05.

Results: The majority of parents reported a mean score of 4.6 in a total of 5 (SD .10) at the ICS responses with different listeners, with better performance with other acquaintances and members of the family. The ICS demonstrated excellent internal consistency (α = 0.95). Positive correlations were found between ICS scores and PCC (r = .790) and a simple linear model was established between the ICS mean score and PCC. Sensitivity (0.98) and specificity (0.87) were considered high.

Conclusion: The ICS-BP indicated high psychometric values, suggesting that this instrument can be used to measure the intelligibility of Brazilian children.

Keywords

Speech Intelligibility, Validation Study, Child Language, Speech, Language and Hearing Sciences

Referências

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Submetido em:
30/04/2024

Aceito em:
04/10/2024

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