Lexical Diversity and Language Development Quantification and Assessment

Vocabulary richness, including lexical diversity and use of rare words, has an important role in assessing proficiency, diagnosing progress and testing theory in the study of language development. This book first reviews different methods for quantifying how vocabulary is deployed in spontaneous speech and writing, and then introduces an alternative approach which can assess overall lexical diversity, measure morphology development and compare the development of different word classes. The new approach is illustrated by its application to first and second language learners.

David D. Malvern is Head of the Institute of Education at the University of Reading.

Brian J. Richards is Professor of Education at the University of Reading.

Ngoni Chipere is Lecturer in Language Arts at the University of the West Indies in Barbados.

Pilbliogßr Duran is Marketing Consultant at Research Solutions Ltd.