Robert DeKeyser
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View article: Development of automaticity in processing L2 collocations: The roles of L1 collocational knowledge and practice condition
Development of automaticity in processing L2 collocations: The roles of L1 collocational knowledge and practice condition Open
This study examined the development of automaticity in processing L2 collocations, and the roles of L1 collocational knowledge and practice conditions in the development process. Korean learners of English were assigned to one of two pract…
View article: Scrutinizing LLAMA D as a measure of implicit learning aptitude
Scrutinizing LLAMA D as a measure of implicit learning aptitude Open
Since Gisela Granena’s influential work, LLAMA D v2, a sound recognition subtest of LLAMA aptitude tests, has been used as a measure of implicit learning aptitude in second language acquisition research. The validity of this test, however,…
View article: IMPLICIT LANGUAGE APTITUDE: CONCEPTUALIZING THE CONSTRUCT, VALIDATING THE MEASURES, AND EXAMINING THE EVIDENCE
IMPLICIT LANGUAGE APTITUDE: CONCEPTUALIZING THE CONSTRUCT, VALIDATING THE MEASURES, AND EXAMINING THE EVIDENCE Open
This article discusses the conceptualization, measurement, and validity of a recently emerged construct in the field of second language acquisition (SLA)—implicit language aptitude (alternatively “implicit aptitude”). Implicit aptitude is …
View article: Advanced Second Language Learners of Mandarin Show Persistent Deficits for Lexical Tone Encoding in Picture-to-Word Form Matching
Advanced Second Language Learners of Mandarin Show Persistent Deficits for Lexical Tone Encoding in Picture-to-Word Form Matching Open
People who grow up speaking a language without lexical tones typically find it difficult to master tonal languages after childhood. Accumulating research suggests that much of the challenge for these second language (L2) speakers has to do…
View article: Conceptos clave de la lingüística aplicada / key concepts in applied linguistics age effects in second language learning, so obvious and so misunderstood.
Conceptos clave de la lingüística aplicada / key concepts in applied linguistics age effects in second language learning, so obvious and so misunderstood. Open
Children are better at learning languages than adults, everybody knows that.But exactly what aspects of language learning are they better at, under what conditions, and why?Nobody knows that for sure (but we have some good hypotheses).What…
View article: ADVANCED SECOND LANGUAGE LEARNERS’ PERCEPTION OF LEXICAL TONE CONTRASTS
ADVANCED SECOND LANGUAGE LEARNERS’ PERCEPTION OF LEXICAL TONE CONTRASTS Open
It is commonly believed that second language (L2) acquisition of lexical tones presents a major challenge for learners from nontonal language backgrounds. This belief is somewhat at odds with research that consistently shows beginning lear…
View article: The critical period hypothesis: A diamond in the rough
The critical period hypothesis: A diamond in the rough Open
For several decades now, research on the acquisition of ASL and other signed languages has contributed to our understanding of language acquisition and of age effects in particular. A strong decline in learning capacity with age has been s…
View article: Age Effects in First Language Attrition: Speech Perception by Korean‐English Bilinguals
Age Effects in First Language Attrition: Speech Perception by Korean‐English Bilinguals Open
This study investigated how bilinguals’ perception of their first language (L1) differs according to age of reduced contact with L1 after immersion in a second language (L2). Twenty‐one L1 Korean‐L2 English bilinguals in the United States,…
View article: Materials for Ahn et al. (2017)
Materials for Ahn et al. (2017) Open
Test materials for Ahn, Chang, DeKeyser, and Lee-Ellis (2017, "Age effects in first language attrition", Language Learning), which are shareable publicly according to the study's IRB protocol: (1) the Language Background Questionnaire, whi…
View article: Dataset for Ahn et al. (2017)
Dataset for Ahn et al. (2017) Open
Full dataset for Ahn, Chang, DeKeyser, and Lee-Ellis (2017, "Age effects in first language attrition", Language Learning), in Excel format (.xlsx) and tab-delimited text format (.txt). Sheet 1 of the Excel file provides the data in spreads…