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catalog abstract ""Various facets of vocabulary richness, including lexical diversity and use of rare words, have an important role in assessing first and second language proficiency, diagnosing progress and testing theories of language development. There are, however, considerable difficulties in quantifying these variables reliably. This book reviews and evaluates different methods of measuring how vocabulary is deployed in spontaneous speech and writing, before introducing alternative approaches which can assess overall lexical diversity, measure morphological development and compare the development of different word classes. These practical solutions are validated and illustrated by their application to a succession of data sets, including speech and writing, and first and second language. The book also contains a glossary that throws light on the confusing proliferation of measures used in language assessment, sample transcripts, and documentation for a new and more flexible version of the vocd software developed by the authors."--Jacket.".
catalog contributor b13299408.
catalog created "2004.".
catalog date "2004".
catalog date "2004.".
catalog dateCopyrighted "2004.".
catalog description ""Various facets of vocabulary richness, including lexical diversity and use of rare words, have an important role in assessing first and second language proficiency, diagnosing progress and testing theories of language development. There are, however, considerable difficulties in quantifying these variables reliably. This book reviews and evaluates different methods of measuring how vocabulary is deployed in spontaneous speech and writing, before introducing alternative approaches which can assess overall lexical diversity, measure morphological development and compare the development of different word classes.".
catalog description "Includes bibliographical references (p. 203-217) and index.".
catalog description "Measuring Lexical Diversity -- Lexical diversity versus vocabulary richness -- Overview of the content of this monograph -- Lexical diversity -- Research using lexical diversity as a variable -- Analysis of historical documents -- Studies of authors' style and dating works of literature -- Forensic linguistics -- Demographic influences on vocabulary use -- Second language and bilingualism -- Language assessment -- Linguistic input and interaction -- The 'noun bias' issue -- Language impairment and delay -- Specific language impairment -- Intervention studies -- Language in dementia -- Aphasia -- Schizophrenia -- Traditional Approaches to Measuring Lexical Diversity -- The number of different words (NDW) -- The type-token ratio (TTR) -- Mean segmental type-token ratio (MSTTR) -- Other linguistic measures of range -- Transformations of TTR -- A Mathematical Model of Lexical Diversity -- A seminal paper -- The harmonic series hypothesis and further developments -- Using population statistics -- The most complete formulation -- A mathematical model for diversity -- Operationalising the model -- A mathematical expression for ideal curves -- Producing the graphs from real data -- Standardising how the measurement is made -- Making the measurement, D, and vocd -- Validation of the Model and its Application to Language Corpora -- Early Child Language 1: the New England Corpus -- Testing vocd -- Investigating sensitivity to sample size -- Results -- Reliability -- Stability -- Internal consistency -- Morphemicisation.".
catalog description "These practical solutions are validated and illustrated by their application to a succession of data sets, including speech and writing, and first and second language. The book also contains a glossary that throws light on the confusing proliferation of measures used in language assessment, sample transcripts, and documentation for a new and more flexible version of the vocd software developed by the authors."--Jacket.".
catalog extent "xvi, 253 p. :".
catalog identifier "1403902313".
catalog issued "2004".
catalog issued "2004.".
catalog language "eng".
catalog publisher "Houndmills, Basingstoke, Hampshire ; New York : Palgrave Macmillan,".
catalog subject "418/.0071 22".
catalog subject "Language acquisition.".
catalog subject "Lexicology.".
catalog subject "P118 .L438 2004".
catalog tableOfContents "Measuring Lexical Diversity -- Lexical diversity versus vocabulary richness -- Overview of the content of this monograph -- Lexical diversity -- Research using lexical diversity as a variable -- Analysis of historical documents -- Studies of authors' style and dating works of literature -- Forensic linguistics -- Demographic influences on vocabulary use -- Second language and bilingualism -- Language assessment -- Linguistic input and interaction -- The 'noun bias' issue -- Language impairment and delay -- Specific language impairment -- Intervention studies -- Language in dementia -- Aphasia -- Schizophrenia -- Traditional Approaches to Measuring Lexical Diversity -- The number of different words (NDW) -- The type-token ratio (TTR) -- Mean segmental type-token ratio (MSTTR) -- Other linguistic measures of range -- Transformations of TTR -- A Mathematical Model of Lexical Diversity -- A seminal paper -- The harmonic series hypothesis and further developments -- Using population statistics -- The most complete formulation -- A mathematical model for diversity -- Operationalising the model -- A mathematical expression for ideal curves -- Producing the graphs from real data -- Standardising how the measurement is made -- Making the measurement, D, and vocd -- Validation of the Model and its Application to Language Corpora -- Early Child Language 1: the New England Corpus -- Testing vocd -- Investigating sensitivity to sample size -- Results -- Reliability -- Stability -- Internal consistency -- Morphemicisation.".
catalog title "Lexical diversity and language development : quantification and assessment / David Malvern ... [et al.].".
catalog type "text".