Evaluating evidence for the reliability and validity of lexical diversity indices in L2 oral task responses

• Published in: Studies in second language acquisition Vol. 46; no. 1; pp. 278 - 299
• Main Authors: Kyle, Kristopher, Sung, Hakyung, Eguchi, Masaki, Zenker, Fred
• Format: Journal Article
• Language: English
• Published: New York, USA Cambridge University Press 01.03.2024
• Subjects: Aktionsart; Correlation; Essays; Language; Language Acquisition; Methods Forum; Productivity; Sampling; Second language learning; Spoken language

Although lexical diversity is often used as a measure of productive proficiency (e.g., as an aspect of lexical complexity) in SLA studies involving oral tasks, relatively little research has been conducted to support the reliability and/or validity of these indices in spoken contexts. Furthermore, S...