This study longitudinally examined the effects of cognitive and sociopsychological individual differences (aptitude, motivation, personality) and the quantity and quality of second language (L2) experience on L2 speech gains in naturalistic settings. We elicited L2 spontaneous speech from 50 Chinese learners of English at the beginning and the end…

After discussing key issues in the aptitude literature and presenting an updated, multicomponential model of cognitive language aptitude, we consider two analyses from a longitudinal investigation using aptitude to predict success in language learning. Aptitude is conceptualized as a special talent for learning languages and a ceiling on success.…

An enduring question is whether language learning aptitude is a stable trait or is one influenced by experience, such as living with two languages. We investigated aptitude in bilinguals and treated their bilingual experience as an aggregate of variables, focusing on how individual differences in (a) language experience variables of proficiency,…

Few adult second language (L2) learners successfully attain high-level proficiency. Although decades of research on beginning to intermediate stages of L2 learning have identified a number of predictors of the rate of acquisition, little research has examined factors relevant to predicting very high levels of L2 proficiency. The current study,…

In this article, I describe studies conducted over 25 years with secondary and post-secondary L2 learners in the United States. The evidence from these studies shows that there are important connections between students' early L1 skills and their L2 aptitude and L2 proficiency and that individual differences in students' L1 skills in elementary…

This study investigated the relationship of first language (L1) skills in elementary school and second language (L2) learning in high school. Students classified as high-, average-, and low-proficiency L2 learners were compared on L1 achievement measures of reading, spelling, vocabulary, phonological awareness, and listening comprehension…

A number of theories of second language L2 acquisition acknowledge a role for explicit L2 knowledge. However, the testing of these theories remains problematic because of the lack of a widely accepted means for measuring L2 explicit knowledge. This article seeks to address this lacuna by examining L2 explicit knowledge from two perspectives.…

Four positions concerning foreign and second language learning ability in adults are summarized with attention to the "critical period" hypothesis. An argument is made for a shift from macro-correlational studies to controlled micro language learning research free of extralinguistic variables. (PMJ)

This study aimed to develop, pilot, and validate an aptitude test for Hungarian learners of English. A literature review on the construct and tests of aptitude is followed by two parts: a pilot phase on the development of a new aptitude test and a main study involving 419 12-year-old children in 10 schools. Data were collected on the aptitude…

In a supplement to Sasaki's 1993 study, six of the same participants took different types of second-language proficiency (SLP) tests, a foreign language aptitude battery, and an intelligence test. Results revealed differences in information processing between the high and low SLP groups. (Contains 35 references.) (Author/LB)

Investigates relationships among measures of second-language proficiency (SLP), foreign-language aptitude, verbal intelligence and reasoning in 160 Japanese college students studying English. The factor analysis of several different SLP test scores was examined, and the relationship between a general SLP factor and a hypothetical general cognitive…