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A meta-analysis of sensitivity to grammatical information during self-paced reading: Towards a framework of reference for reading time effect sizes.

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JournalStudies in Second Language Acquisition
DateSubmitted - 18 Jan 2019
DateAccepted/In press - 4 Feb 2019
DateE-pub ahead of print (current) - 7 May 2019
Early online date7/05/19
Original languageEnglish

Abstract

Despite extensive theoretical and empirical research, we do not have estimations of the magnitude
of sensitivity to grammatical information during L2 online processing. This is largely due to
reliance on null hypothesis significance testing (Plonsky, 2015). The current meta-analysis draws
on data from one elicitation technique, self-paced reading, across 57 studies (N 5 3,052), to
estimate sensitivity to L2 morphosyntax and how far L1 background moderates this. Overall, we
found a reliable sensitivity to L2 morphosyntax at advanced proficiencies (d 5 .20, 95% CIs .15,
.25), with some evidence that this was reliably lower than for native speakers (NSs). These patterns
were not generally moderated by linguistic feature or sentence region. However, effects for
anomaly detection were larger among NSs than L2 learners and the effects among L2 learners
appeared to show a trend toward L1 influence. Finding smaller effects than in other subdomains,
we provide an initial framework of reference for L2 reading time effect sizes.

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© Cambridge University Press 2019. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.

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