Back to Basics: How Measures of Lexical Diversity Can Help Discriminate between CEFR Levels.

Autor/inn/en	Treffers-Daller, Jeanine; Parslow, Patrick; Williams, Shirley
Titel	Back to Basics: How Measures of Lexical Diversity Can Help Discriminate between CEFR Levels.
Quelle	In: Applied linguistics, 39 (2018) 3, S. 302-327Infoseite zur Zeitschrift PDF als Volltext Link als defekt meldenVerfügbarkeit
Beigaben	Anmerkungen; Abbildungen 2; Tabellen 5
Sprache	englisch
Dokumenttyp	online; Zeitschriftenaufsatz
ISSN	1477-450X
Schlagwörter	Empirische Forschung; Essay; Vergleichende Analyse; Wortschatz; Europa
Abstract	This study contributes to ongoing discussions on how measures of lexical diversity (LD) can help discriminate between essays from second language learners of English, whose work has been assessed as belonging to levels B1 to C2 of the Common European Framework of Reference (CEFR). The focus is, in particular, on how different operationalizations of what constitutes a 'different word' (type) impact on the LD measures themselves and on their ability to discriminate between CEFR levels. The results show that basic measures of LD, such as the number of different words, the TTR (Templin 1957), and the Index of Guiraud (Guiraud 1954) explain more variance in the CEFR levels than sophisticated measures, such as D (Malvern et al. 2004), HD-D (McCarthy and Jarvis 2007), and MTLD (McCarthy 2005) provided text length is kept constant across texts. A simple count of different words (defined as lemma's and not as word families) was the best predictor of CEFR levels and explained 22 per cent of the variance in overall scores on the Pearson Test of English Academic in essays written by 176 test takers. (Verlag).
Erfasst von	Informationszentrum für Fremdsprachenforschung, Marburg
Update	2022/2