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Lexical Diversity and Lexical Sophistication in First Language Writing
2004The research reported in this chapter has several aims. First, we wished to extend the exploration of vocabulary richness, particularly lexical diversity to the medium of writing. It was important to assess the extent to which vocabulary diversity as measured by D, and word rarity continued to be valid developmental measures in older children producing
David Malvern +3 more
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Developmental Trends in Lexical Diversity
Applied Linguistics, 2004This article discusses issues in measuring lexical diversity, before outlining an approach based on mathematical modelling that produces a measure, D, designed to address these problems. The procedure for obtaining values for D directly from transcripts using software (vocd) is introduced, and then applied to thirty-two children from the Bristol Study ...
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Measures of lexical diversity in aphasia
Aphasiology, 2003Background: Important to the assessment of aphasia are analyses of discourse production and, in particular, lexical diversity analyses of verbal production of adults with aphasia. Previous researchers have used type-token ratio (TTR) to measure conversational vocabulary in adults with aphasia; however, this measure is known to be sensitive to sample ...
Heather Harris Wright +2 more
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Traditional Approaches to Measuring Lexical Diversity
2004As we have indicated in the previous chapter, measuring lexical diversity is not as straightforward as it may seem, and to demonstrate the issues involved in its quantification we first need to consider in some detail an apparently simple approach and then discuss the most influential metric, which we shall show is fatally flawed.
David Malvern +3 more
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A Mathematical Model of Lexical Diversity
2004As well as being a function of text length, there is another limitation to using raw TTR for the whole of a language sample — it does not take into account the frequency with which types are repeated. As a simple illustration of the point, we can consider three imaginary texts of 40 tokens containing 20 types.
David Malvern +3 more
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Lexical diversity in bilingual speakers of Croatian and Italian
2021Abstract The aim of this study was to determine whether measures of lexical diversity (LD) can be used to assess general lexical knowledge. This study focused on 30 sequential Croatian/Italian bilinguals aged between 5 and 7 years, who were compared with 30 Croatian and 30 Italian monolinguals matched in age.
Gordana Hržica, Maja Roch
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Speaking school language: Lexical diversity and lexical density in mothers' storytelling
2023Speaking school language: Lexical diversity and lexical density in mothers ...
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Grounding lexical diversity in human judgments
Language Testing, 2017The present study discusses the relevance of measures of lexical diversity (LD) to the assessment of learner corpora. It also argues that existing measures of LD, many of which have become specialized for use with language corpora, are fundamentally measures of lexical repetition, are based on an etic perspective of language, and lack construct ...
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