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TFM_Waltz_James.pdf (2.43 MB)

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2021-09-02

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cc by-nc-nd (c) James Waltz, 2021
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/200368

Was That a Bag or a Bug? Perceptual Measures, Euclidean Distance, Mahalanobis Distance, and Pillai Scores in the Assessment of L2 Pronunciation

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[eng] Researchers employ a variety of techniques to measure accuracy of second-language pronunciation. Little research has been done on certain measures that have been used more in recent studies, such as Mahalanobis distance and Pillai scores, and how they compare to perceptual measures. Using pre- and post-test recordings of 23 Spanish/ Catalan learners of English that were obtained using a delayed word repetition task in a previous, high-variability phonetic training study on the English phonemes /æ/ and /ᴧ/, this thesis examines the relationship between native-speaking judges’ word identification and goodness ratings, Euclidean distances, Mahalanobis distances, and Pillai scores in their evaluation of pronunciation accuracy and improvement between test times. For each acoustic metric, measures between native- and non-native speakers’ productions are taken as well as measures between non-native speakers’ realizations of /æ/ and /ᴧ/. An experimental way of computing perceptual ratings for items that are incorrectly identified by raters is also investigated and compared to existing measures.

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Màster de Lingüística Aplicada i Adquisició de Llengües en Contextos Multilingües, Departament de Llengües i Literatures Modernes i d'Estudis Anglesos, Universitat de Barcelona. Curs: 2020-2021. Tutor: Joan C. Mora

Matèries

Adquisició d'una segona llengua, Ensenyament de llengües estrangeres, Anglès, Pronunciació, Tests, Català, Castellà (Llengua), Treballs de fi de màster

Matèries (anglès)

Second language acquisition, Foreign language teaching, English language, Pronunciation, Tests, Catalan language, Spanish language, Master's theses

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Màster Oficial - Lingüística Aplicada i Adquisició de Llengües en Contextos Multilingües

Citació

WALTZ, James. Was That a Bag or a Bug? Perceptual Measures, Euclidean Distance, Mahalanobis Distance, and Pillai Scores in the Assessment of L2 Pronunciation. [consulta: 8 de gener de 2026]. [Disponible a: https://hdl.handle.net/2445/200368]

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