Languaging--that is, using language to mediate thinking, orally or in writing--facilitates second language (L2) learning. As languaging requires the deliberate, analytical action of L2 learners, learners with higher language aptitude are likely to benefit more from languaging than those with lower aptitude. Thus, this study investigated the extent…

While the relationship between language experience and foreign language aptitude (FLA) has been studied extensively, little is known about the underlying intermediate link between them. This study investigates whether multilingual learning experience is correlated with FLA and whether working memory (WM) mediates this relationship. A total of 93…

Widespread use of the Modern Language Aptitude Test (MLAT) in L2 studies of individual differences implicitly assumes that L2 aptitude is a distinct cognitive facet. There is considerable evidence for prediction from L1 abilities to L2 learning. In this longitudinal study, L1-MLAT-L2 relations were examined in 307 US secondary students based on…

Although researchers have found strong relationships between first language (L1) skills and second language (L2) anxiety, less is known about how L1 skills in primary school impact L2 anxiety years after L1 has been acquired. Previous research lacked evidence for the mediating role of L2 aptitude and L2 achievement in the relationship. This study…

In this study, neural representation of adult second language (L2) speakers' implicit grammatical knowledge was investigated. Advanced L2 speakers of Japanese living in Japan, as well as L1 Japanese speakers, performed a word-monitoring task (proposed as an implicit knowledge test) in the MRI scanner. Behavioral measures were obtained from…

Despite the extensive research on bilingual development, our understanding of how lexical competition unfolds in the bilingual mind remains limited. Previous studies have predominantly focused on crosslinguistic competition, neglecting the examination of the competition process within each language and the influence of diverse bilingual…

The Program for International Student Assessment (PISA) 2012 utilized data from 63 countries and economies to generate research questions that centered on the contribution of mathematics self-efficacy, opportunity to learn (OTL), and how their interplay affected students' mathematical performance. This study reveals that in a majority of the…

Developing effective aptitude test batteries for conference interpreting is highly relevant for China given its large and fast-growing interpreting trainee population. This paper reports on the aptitude tests implemented to 23 first-year students at a CIUTI member and UN MOU university in China. We compared the validity of recall, a test commonly…

It is widely known that test anxiety (TA) is associated with a decrease in test scores. The objective of this study is to provide evidence of the existence of two paths through which TA affects test scores: an indirect path that is associated with the mediation of the updating efficiency and a direct path moderated by the putting into perspective…

This paper examines evidence for relationships among individual differences (IDs) in L1 achievement, L2 aptitude, and L2 achievement. It begins by providing an overview of my academic journey from L1 educator to L2 researcher and explains the development of the Linguistic Coding Differences Hypothesis (LCDH). Next, I review Peter Skehan's…

Despite extensive use of online language learning during the pandemic of COVID, there is insufficient research on what factors influence students' foreign language achievements in online learning conditions. This article investigated the roles of language aptitude and online self-regulated learning in foreign language achievement in mainland…

This study examined Carroll's Model of School Learning (MSL) on adult basic education (ABE). The study's central question was, "Does Carroll's MSL account for additional variance in TABE 11 or 12 scores beyond instructional time after controlling for age?" A non-experimental cross-sectional design was employed to explore the fiscal year…

Item response tree (IRTree) models are a flexible framework to control self-reported trait measurements for response styles. To this end, IRTree models decompose the responses to rating items into sub-decisions, which are assumed to be made on the basis of either the trait being measured or a response style, whereby the effects of such person…

Students with emotional and behavioral disabilities (EBD) show low academic growth and are most likely to be placed in restrictive learning environments. This research study explored correlations between class settings and the academic achievement of middle school students with EBD. The academic achievement measures are based upon California's…

Foreign language aptitude is defined as one's potential to learn a second language. A language learner with higher aptitude is predicted to learn more, faster, and reach a higher level of proficiency. If this is the case, one way to validate the construct of aptitude and its measure is to conduct a validation study in which measures of aptitude is…