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Probing the Internal Validity of the LLAMA Language Aptitude Tests
Stockholm University, Faculty of Humanities, Department of Swedish Language and Multilingualism, Centre for Research on Bilingualism. Stellenbosch University, South Africa.
Number of Authors: 22019 (English)In: Language learning, ISSN 0023-8333, E-ISSN 1467-9922Article in journal (Refereed) Epub ahead of print
Abstract [en]

Over the past decade, the LLAMA language aptitude test battery has come to play an increasingly important role as an instrument in research on individual differences in language development. However, a potentially serious problem that has been pointed out by several scholars is that the LLAMA has not yet been carefully validated. We addressed this issue by examining the internal validity of this test battery. We collected LLAMA data from 350 participants and assessed these data using classical item analysis, Rasch analysis, and principal component analysis within a framework of best practices in educational and psychological test validation. The results show that only one out of the four subtests (LLAMA B) produced scores that fit a latent trait model with sufficient accuracy. This suggests that researchers using the LLAMA battery must treat their results with appropriate carefulness and also that there is potential for refining the LLAMA further.

Place, publisher, year, edition, pages
2019.
Keywords [en]
language aptitude, language learning, validation, LLAMA, item analysis, Rasch measurement
National Category
Educational Sciences Languages and Literature
Identifiers
URN: urn:nbn:se:su:diva-173029DOI: 10.1111/lang.12368ISI: 000480446300001OAI: oai:DiVA.org:su-173029DiVA, id: diva2:1353462
Available from: 2019-09-23 Created: 2019-09-23 Last updated: 2019-09-23

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