Mary Lou Vercellotti
Department of English
Ball State University
Vercellotti, M. L. (2015). The development of complexity,
accuracy, and fluency in second language performance: A longitudinal
study. Applied Linguistics. doi:10.1093/applin/amv002.
Vercellotti, M. L. & Packer, J. (2016). Shifting structural
complexity: The production of clause types in speeches given by English
for Academic Purposes students. Journal of English for Academic
Purposes, 22, 179-190.
In accordance with TalkBank rules, any use of data from this corpus
must be accompanied by at least one of the above references.
This project investigates the development of complexity, accuracy, and
fluency in the speech of English language learners. This research is
classroom-based, pedagogy-driven language development research.
Participants were adult learners entering an Intensive English Program
(IEP) in the United States during the year 2010. The longitudinal data
were collected during class meetings, as part of the speaking curriculum
at every instruction level in the IEP. The data, two-minute monologues
on a given topic, were collected by each student in the IEP multiple
times per academic semester, and many students remained in the IEP
across multiple semesters. The topics varied by semester, by level, and
sometimes by class section for pedagogical reasons. The speeches were
transcribed by a native speaker experienced in transcribing non-native
speech and segmented into sentence-level units, AS-units, following
Foster, Tonkyn, and Wigglesworth (2000).