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Kazuya Saito – Studies in Second Language Acquisition, 2024
The current study set out to examine to what degree age of acquisition (AOA), defined as a learner's first intensive exposure to a second language (L2) environment, mediates the final state of postpubertal, spoken vocabulary attainment. In Study 1, spontaneous speech samples were elicited from experienced Japanese users of English (n = 41) using…
Descriptors: Second Language Learning, Vocabulary Development, English (Second Language), Age Differences
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
Sinkeviciute, Ruta; Brown, Helen; Brekelmans, Gwen; Wonnacott, Elizabeth – Studies in Second Language Acquisition, 2019
Input variability is key in many aspects of linguistic learning, yet variability increases input complexity, which may cause difficulty in some learning contexts. The current work investigates this trade-off by comparing speaker variability effects on L2 vocabulary learning in different age groups. Existing literature suggests that speaker…
Descriptors: Linguistic Input, Second Language Learning, Vocabulary Development, Comparative Analysis
Crossley, Scott A.; Skalicky, Stephen; Kyle, Kristopher; Monteiro, Katia – Studies in Second Language Acquisition, 2019
A number of longitudinal studies of L2 production have reported frequency effects wherein learners' produce more frequent words as a function of time. The current study investigated the spoken output of English L2 learners over a four-month period of time using both native and non-native English speaker frequency norms for both word types and word…
Descriptors: Second Language Learning, Longitudinal Studies, English (Second Language), Speech Communication
Schröter, Pauline; Schroeder, Sascha – Studies in Second Language Acquisition, 2017
Investigating the impact of linguistic characteristics on visual word recognition in children, we studied whether differences in native (L1) and second language (L2) processing already emerge at the beginning of reading development. German elementary school students in grades 2 to 6 completed a battery of standardized tests and a lexical decision…
Descriptors: German, Native Language, Second Language Learning, Word Recognition

Olshtain, Elite – Studies in Second Language Acquisition, 1989
Reports on studies focusing on individual attrition of English as a Second Language in an environment where Hebrew is the dominant language. Age, sociolinguistic features, input variables, and linguistic variables are discussed as well as major trends of change in language use that identify a limited reversal of the acquisition process. 29…
Descriptors: Age Differences, Child Language, Culture Contact, English (Second Language)