This paper sets out to peruse the role of various theories or more precisely, hypotheses invoked in second language acquisition (SLA) research by surveying three empirical studies pertaining to the critical period hypothesis in the SLA of phonetics and phonology. In particular, the three studies reviewed are titled in chronological order as (1)…

This study examined whether vocabulary knowledge is sufficient for second language (L2) word-meaning inferencing. Specifically, it investigated the role of the learner's sensitivity to a word's morphological structure (referred to 'morphological awareness' or 'MA' hereafter) as additional support that enhances multi-character word-meaning…

Individual differences (IDs) largely contribute to success in adult second language attainment (e.g., Dörnyei, 2006). Heritage language (HL) studies have also explored the role of IDs, namely psychosocial variables, and biographical factors with an adult HL learner population. However, the specific contribution of these variables to HL learners'…

In this article, we challenge the notion that aptitude--operationalized as grammatical sensitivity as measured by the Words in Sentences section of the Modern Language Aptitude Test--is central to adult second language (L2) acquisition. We present the findings of a study on the acquisition of two properties of Japanese, head-final word order and…

Immigrant students access community colleges with increasing frequency (Teranishi, Suarez-Orozco, & Suarez-Orozco, 2011); however, the majority of research focuses on Generation 1.5 students who completed K-12 education in the U.S. Generation 1 learners are defined in this study as adult immigrants (Rumbaut, 2004) and adult learners (Knowles,…

Humans are remarkably sensitive to the statistical structure of language. However, different mechanisms have been proposed to account for such statistical sensitivities. The present study compared adult learning of syntax and the ability of two models of statistical learning to simulate human performance: Simple Recurrent Networks, which learn by…

Attribution theory (Weiner, 1985) and self-determination theory (Deci & Ryan, 1985) have been explored as contributors to L2 motivation (cf. Dörnyei, 2001) but have never been studied quantitatively in concert. In addition, students' attributions for success in learning a foreign language have never been measured through the use of a…

The present study tested the applicability of expectancy-value theory to adults' learning motivation. Motivation was measured as the anticipated reaction (AR) of German students (N = 300) to receiving their instructions in English as a new learning opportunity. We used structural equation modeling to test our hypotheses. Expectancies of success…

This study investigates the role of perception and sensory motor learning on speech production in L2. Compared to natural language learning, acoustic input in formal adult instruction is deprived of multiple sensory motor cues and lacks the imitation component. Consequently, it is possible that inaccurate pronunciation results from training.…

Talamas et al. (1999), Ferre et al. (2006) and Sunderman and Kroll (2006) exposed participants to first-language/second-language (L1/L2) pairs of words and asked them to decide whether the second word was the correct translation of the first. In the critical condition, the L2 word was either the translation of the L1 word ("man" [right arrow]…

A great deal of research into second-language (L2) development focuses on the role of cognitive factors and other individual differences. Studies of children and prime-of-life adult L2 learners suggest that differences exist in the learning processes of these groups. However, to date, little empirical work has been conducted with older adult…

The article argues that Norton Peirce's (1995) concept of a language learner's investment should figure centrally in how instructors address the needs of adult learners in ESL classrooms. Investment is discussed in relation to second language acquisition research that addresses the role of social factors in second language acquisition. The article…

In much research, learners' perspectives tend to be considered in light of a program's expectations or U.S. society's definitions of learner needs, rather than considering how learners would define and make sense of their own experiences, hopes, and needs. In contrast, this study considers learners' meanings as the fundamental starting point for…

The authors carefully followed for a year or more the inner experiences of learning and change of 41 ABE/ESOL (Adult Basic Education/English for Speakers of Other Languages) learners from all over the world. They were enrolled in three distinct U.S. programs (a community college, a family literacy site, and a workplace site), each oriented to…

How do ABE/ESOL (Adult Basic Education/English for Speakers of Other Languages) programs shape adult learners, and how do adult learners, in turn, shape their programs? Beyond the acquisition of important skills (such as greater fluency in the English language) what are the bigger internal meanings for adults of participating in ABE/ESOL…