THE EFFECTS of TALKER VARIABILITY and FREQUENCY of EXPOSURE on the ACQUISITION of SPOKEN WORD KNOWLEDGE

Takumi Uchihara*, Stuart Webb, Kazuya Saito, Pavel Trofimovich

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Eighty Japanese learners of English as a foreign language encountered 40 target words in one of four experimental conditions (three encounters, six encounters, three encounters with talker variability, and six encounters with talker variability). A picture-naming test was conducted three times (pretest, immediate posttest, and delayed posttest) and elicited speech samples were scored in terms of form-meaning connection (spoken form recall) and word stress accuracy (stress placement accuracy and vowel duration ratio). Results suggested that frequency of exposure consistently promoted the recall of spoken forms, whereas talker variability was more closely related to the enhancement of word stress accuracy. These findings shed light on how input quantity (frequency) and quality (variability) affect different stages of lexical development and provide implications for vocabulary teaching.

Original languageEnglish
JournalStudies in Second Language Acquisition
DOIs
Publication statusAccepted/In press - 2021

ASJC Scopus subject areas

  • Language and Linguistics
  • Education
  • Linguistics and Language

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