This study investigated the relationship among intelligibility, comprehensibility, and accentedness in the speech of second language learners of Spanish of varying proficiency in instructed contexts. It conceptually replicated studies by Munro and Derwing (1995a) and Derwing and Munro (1997), who found partial independence among the three speech…

Whereas a growing amount of attention has been directed to the role of perceptual-cognitive aptitude in successful second language (L2) lexicogrammar learning, scholars have begun to investigate the same topic in the context of L2 pronunciation learning. To date, there is ongoing discussion on the mechanism underlying L2 speech learning in…

Two acoustic studies of voice onset time (VOT) in sibilant-stop (ST) consonant clusters, produced by first language (L1) speakers of Polish, are presented. In the first, a baseline study of L1 Polish comparing ST clusters with initial singleton stops, a small degree of VOT shortening after /s/ was found for /p/, but not /t/. The second study…

This study considers the performance of tone pronunciation and morpheme intelligibility by L2 Polish Mandarin learners. A mixed-effects ordinal regression model and Tukey's HSD multiple test were used to examine the start-point, end-point, of syllables as a means of assessing their intelligibility by L2 Polish learners regarding the tones with the…

Listeners interpret cues in speech processing immediately rather than waiting until the end of a sentence. In particular, prosodic cues in auditory speech processing can aid listeners in building information structure and contrast sets. Native speakers even use this information in combination with syntactic and semantic information to build mental…

As part of the effort to elevate the oral English proficiency of Thai EFL learners, this paper explores university students' target-deviant English use in conversation, which should be systematically tackled in conversation teaching. Data examined included 41 two-three-minute video-recorded role-play dialogues from two English conversation…

The present dissertation analyzed speech production and perception in early heritage Spanish-English bilingual children. Specifically, I investigated how perception and production of lexical stress develops in bilingual children. Current models of second language (L2) speech perception do not include heritage bilinguals or suprasegmental aspects…

While most empirical studies have investigated the improvement of learners' L2 spoken proficiency via speaking-related interventions, the present study examined the same topic through a different modality: listening. Ninety-five first-year tertiary-level students of English as a second language (ESL) in Hong Kong participated in this three-month…

The intelligibility of everyday speech is built on the mastery and the use of appropriate intonation patterns. This makes intonation the music of everyday speech of which its appropriate use has been the final hurdle that the majority of the speakers of English as a Second Language have not crossed. This paper investigated the intonation patterns…

This study examines the role of listeners' native language (L1) background in judgments of comprehensibility (ease of understanding) for speakers from same and different L1 backgrounds, to determine the extent of a shared second language (L2) comprehensibility benefit. Forty L2 English speakers from Mandarin, French, Hindi, and English backgrounds…

The current project longitudinally investigated the extent to which first-year Japanese university students developed their second language (L2) oral ability in relation to increased input in foreign language classrooms. Their spontaneous speech was elicited at the beginning, middle and end of one academic year, and then judged by linguistically…

The current project examined whether and to what degree age of acquisition (AOA), defined as the first intensive exposure to a second language (L2) environment, can be predictive of the end state of postpubertal L2 oral proficiency attainment. Data were collected from 88 experienced Japanese learners of English and two groups of 20 baseline…

This study examined the relationship between targeted pronunciation instruction in French as a second language (L2) and listener-based ratings of accent, comprehensibility, and fluency. The ratings by 20 French listeners evaluating the speech of 30 adult L2 French learners enrolled in a 15-week listening and speaking course targeting segments,…

The effects of repeated oral reading and timed reading on L2 oral reading fluency were examined among Japanese university students (N = 50) over 12 weeks. Three quasi-experimental groups were used in the study. Group 1 practiced two types of reading: Repeated oral reading with chunking practice and timed reading. Group 2 did timed reading only.…

The aim of this study was to evaluate the effects of second language (L2) experience--operationalized as length of residence (LOR) in Canada--on late Japanese learners of English. Data collected from 65 participants consisted of three groups of learners (short-, mid-, and long-LOR groups) and two baseline groups of native Japanese and native…