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LINGUISTIC DIMENSIONS OF L2 ACCENTEDNESS AND COMPREHENSIBILITY VARY ACROSS SPEAKING TASKS

Published online by Cambridge University Press:  22 August 2017

Dustin Crowther ,
Pavel Trofimovich ,
Kazuya Saito  and
Talia Isaacs
Dustin Crowther*
Affiliation:
Michigan State University
Pavel Trofimovich
Affiliation:
Concordia University
Kazuya Saito
Affiliation:
Birkbeck, University of London
Talia Isaacs
Affiliation:
University College London
*
*Correspondence concerning this article should be addressed to Dustin Crowther, Department of Linguistics and Germanic, Slavic, Asian and African Languages, B-331 Wells Hall, Michigan State University, East Lansing, MI 48824, USA. E-mail: [email protected]
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Abstract

This study critically examined the previously reported partial independence between second language (L2) accentedness (degree to which L2 speech differs from the target variety) and comprehensibility (ease of understanding). In prior work, comprehensibility was linked to multiple linguistic dimensions of L2 speech (phonology, fluency, lexis, grammar) whereas accentedness was narrowly associated with L2 phonology. However, these findings stemmed from a single task (picture narrative), suggesting that task type could affect the particular linguistic measures distinguishing comprehensibility from accentedness. To address this limitation, speech ratings of 10 native listeners assessing 60 speakers of L2 English in three tasks (picture narrative, IELTS, TOEFL) were analyzed, targeting two global ratings (accentedness, comprehensibility) and 10 linguistic measures (segmental and word stress accuracy, intonation, rhythm, speech rate, grammatical accuracy and complexity, lexical richness and complexity, discourse richness). Linguistic distinctions between accentedness and comprehensibility were less pronounced in the cognitively complex task (TOEFL), with overlapping sets of phonology, lexis, and grammar variables contributing to listener ratings of accentedness and comprehensibility. This finding points to multifaceted, task-specific relationships between these two constructs.

Type
Research Report
Information
Studies in Second Language Acquisition , Volume 40 , Issue 2 , June 2018 , pp. 443 - 457
Copyright
Copyright © Cambridge University Press 2017 

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