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Kristopher Kyle; Hakyung Sung; Masaki Eguchi; Fred Zenker – Studies in Second Language Acquisition, 2024
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, SLA researchers commonly use indices of lexical…
Descriptors: Second Language Learning, Second Language Instruction, Oral Language, Validity