By David Malvern, Brian J. Richards, Ngoni Chipere, Pilar Durán

ISBN-10: 1403902313

ISBN-13: 9781403902313

Vocabulary richness, together with lexical range and use of infrequent phrases, has a big function in assessing skillability, diagnosing growth and checking out concept within the learn of language improvement. This e-book first stories assorted equipment for quantifying how vocabulary is deployed in spontaneous speech and writing, after which introduces another strategy that may check total lexical range, degree morphology improvement and examine the improvement of other notice sessions. the recent technique is illustrated by means of its program to first and moment language rookies.

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Extra resources for Lexical Diversity and Language Development: Quanitfication and Assessment

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Others have used different standard numbers of 24 Lexical Diversity and Language Development utterances, however; Fletcher’s (1985) study of Sophie, for instance, used 100 utterances. Whatever base is chosen for the standardisation, the increase of MLU with age and/or language ability means that the calculation of TTR is over differently sized language samples for each age and language stage. 2 above shows). A more recent method is Yoder and colleagues’ (1994) ‘prorated number of lexically free words’ that uses utterances as the standard and divides the number of ‘lexically free’ types directly by the number of utterances.

But it is a public speech to the crowd, and consciously employs rhetorical repetition to rouse the mob, particularly the statements: ‘But Brutus says he was ambitious’; ‘And Brutus is an honourable man’, which appear with minor variations four times within the extract. It is to be expected, then, that there will be less diversity in this second extract, and a lower TTR can be predicted. This time 29 words are repeated, with only ten appearing no more than twice. 50, smaller than that for the first, as predicted.

Turning the range measures listed above into ratios offers no advantage. Therefore Richards’s attempt to compensate for variations in sample size by calculating the ‘range of auxiliary forms/100 structured utterances’ for each transcript (Richards, 1990, p. 37) is just as flawed as using TTR. As too would be Yoder and colleagues’ (1994) measure and other ‘TTRs’ such as those calculated for gestures (Iverson, Capirci and Caselli, 1994), signs (Layton and Savino, 1990) and, for infant vocalisations, the number of different sounds divided by the total number of sounds produced (studies by Irwin, reported in McCarthy, 1954).

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Lexical Diversity and Language Development: Quanitfication and Assessment by David Malvern, Brian J. Richards, Ngoni Chipere, Pilar Durán


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