Empirical Approaches to Measuring the Intelligibility of Different Varieties of English in Predicting Listener Comprehension

Publisher： John Wiley & Sons Inc

E-ISSN： 1467-9922|68|1|115-146

ISSN： 0023-8333

Source： LANGUAGE LEARNING, Vol.68, Iss.1, 2018-03, pp. : 115-146

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Abstract

AbstractThis study compared five research‐based intelligibility measures as they were applied to six varieties of English. The objective was to determine which approach to measuring intelligibility would be most reliable for predicting listener comprehension, as measured through a listening comprehension test similar to the Test of English as a Foreign Language. The speakers included 18 English users representing six distinct varieties. These speakers’ speech was evaluated by 60 listeners, users of the same English varieties who completed the listening comprehension test as well as five intelligibility tasks, all recorded by the speakers. The five measures of intelligibility included responses to true/false statements, scalar ratings of speech, perception of nonsense sentences, perception of filtered sentences, and transcription of speech; these measures were compared in terms of their relationship to listening comprehension scores using linear mixed‐effects models. Results showed that the measure of intelligibility based on listeners’ responses to nonsense sentences was the strongest predictor of the listening comprehension scores.