Affiliation:
1. University of Utah
2. Brigham Young University
Abstract
Abstract
This study tests three measures of lexical diversity (LD), each using five operationalizations of word types. The measures
include MTLD (measure of textual lexical diversity), MTLD-W (moving average MTLD with wrap-around measurement), and MATTR (moving average
type-token ratio). Each of these measures is tested with types operationalized as orthographic forms, lemmas using automated POS tags,
lemmas using manually corrected POS tags, flemmas (list-based lemmas that do not distinguish between parts of speech), and word families.
These measures are applied to 60 narrative texts written in English by adolescent native speakers of English (n = 13),
Finnish (n = 31), and Swedish (n = 16). Each individual LD measure is evaluated in relation to how well it
correlates with the mean LD ratings of 55 human raters whose inter-rater reliability was exceedingly high (Cronbach’s alpha = .980). The
overall results show that the three measures are comparable but two of the operationalizations of types produce mixed results across
measures.
Publisher
John Benjamins Publishing Company
Cited by
4 articles.
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