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Measuring Lexical Diversity in Korean Learners' Speech Production focusing on D value

  • Korean Semantics
  • 2014, 45(), pp.69-97
  • Publisher : The Society Of Korean Semantics
  • Research Area : Humanities > Korean Language and Literature

Nam Juyeon 1 Youngjoo Kim 1

1경희대학교

Accredited

ABSTRACT

This study aimed at investigating lexical diversity in speech production of learners of Korean. A proficiency test(mini-TOPIK) and a speaking task were conducted to 55 intermediate learners who were at 2, 4, 6, 8 ranks by proficiency scores. The study applied D value to analyze lexical diversity of learners and compared the results with that of native speakers. The results showed that lexical diversity of learners has improved in a similar pattern with that of native speakers, but D-values of nouns and verbs still remained low in comparison with those of native speakers.

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