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Schepens, Job J.; van Hout, Roeland W. N. M.; van der Slik, Frans W. P. – Studies in Second Language Acquisition, 2023
We investigated age-related decline in adult learning of Dutch as an additional language (Ln) in speaking, writing, listening, and reading proficiency test scores for 56,024 adult immigrants with 50 L1s who came to the Netherlands for study or work. Performance for all four language skills turned out to decline monotonically after an age of…
Descriptors: Aging (Individuals), Cognitive Ability, Second Language Learning, Second Language Instruction
Goriot, Claire; van Hout, Roeland; Broersma, Mirjam; Lobo, Vanessa; McQueen, James M.; Unsworth, Sharon – International Journal of Bilingual Education and Bilingualism, 2021
This study investigated to what extent the Peabody Picture Vocabulary Test (PPVT-4) is a reliable tool for measuring vocabulary knowledge of English as a second language (L2), and to what extent L1 characteristics affect test outcomes. The PPVT-4 was administered to Dutch pupils in six different age groups (4-15 years old) who were or were not…
Descriptors: Children, Adolescents, Elementary School Students, Secondary School Students
van der Slik, Frans; Hout, Roeland van; Schepens, Job – Second Language Research, 2019
Applied linguistics may benefit from a morphological complexity measure to get a better grip on language learning problems and to better understand what kind of typological differences between languages are more important than others in facilitating or impeding adult learning of an additional language. Using speaking proficiency scores of 9,000…
Descriptors: Indo European Languages, Morphology (Languages), Applied Linguistics, Language Classification

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