This book traces and summarizes the author's theoretical insights and empirical findings in the field of foreign language education. The volume explores themes such as individual differences in L1 ability and their connection to L2 aptitude and L2 achievement, L2 anxiety as an affective or cognitive variable, and the relationship between L1 and L2…

This study is the first to investigate subject-level variability in sociolinguistic evaluative judgements by 30 adult L2 German learners and explore whether the observed variability is characterizable as a function of individual differences in proficiency, exposure, and motivation. Because group-level estimates did not paint an accurate picture of…

The present study aimed to validate a 70-item Korean bilingual version of the Vocabulary Size Test (VST) using Rasch modeling. The goal was to assess the applicability of this Korean version of the VST for Korean learners of English in an English as a foreign language (EFL) context by examining validity evidence based on Messick's framework.…

This paper aims to report on Chinese college students' emotions in English as a foreign language (EFL) speaking classrooms, including the trajectory of their emotions, and their perceived impacts of these emotions on their performances in class. Through conducting a case study among 12 Chinese college students and qualitatively analyzing the…

In two studies, we examined two functional dimensions of L2 learners' self-regulation toward their motivational goals: assessment and locomotion. The assessment constitutes the aspect of self-regulation concerned with critically evaluating the relative quality of L2 states and goals and the means to achieve them. The locomotion mode constitutes…

This study expands on previous research into filler-gap dependency processing in second language (L2) English, by means of a replication of Canales's (2012) self-paced reading study. Canales, among others, found that advanced L2-English speakers exhibited the same processing behavior that Stowe (1986) found for native English processing: On…

This longitudinal study with time-serial data examines for the first time whether different types of intraindividual variation in second language (L2) performance and cognitive functioning are related, and how and when they influence L2 development longitudinally in older adulthood. We analyzed the L2 development of 26 German-speaking adults aged…

In many contexts of multilingualism, language learners can initiate communication in the target language (TL), or a contact language (such as English). Patterns of use emerging from these choices vary between individuals and affect TL development. Willingness to communicate (WTC) needs to be investigated in ways that capture these variations. So…

This brief report presents the results of a re-analysis of data by Yi, Man, and Maie (2023), who investigated L1 and L2 intuitive knowledge of phrasal frequency and collocation strength in multiword sequences. We utilized an individual-differences approach and examined which participant variables (age of onset, length of residence, language use,…

The present study employs regulatory focus theory (Higgins, 1997) to investigate the effects of L2 speakers' chronic regulatory focus on their L2 pragmatic versus grammatical awareness. It involved the participation of 121 Chinese students, who are English language learners, at a university in the United States. Haws et al.'s (2010) questionnaire…

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…

This study examines the role of language proficiency and other individual factors (attitudes, input) in the acquisition of language-specific [ð] and dialect-specific [Ø] allophones of Spanish intervocalic /d/ in the /ado/ context by L2 and heritage Spanish speakers during a short-term study abroad in Sevilla, Spain. Twenty L2-intermediate, 10…

Recent development in L2 pragmatics research in a study abroad context has witnessed an emerging line of studies investigating the joint influences of contextual and individual learner factors on second language (L2) pragmatic development. This paper argues for the replication of two representative quantitative studies in this new research…

The present study intended to investigate the possible effects of speech acts strategies on Iranian beginner and intermediate EFL learners' speaking ability. The first step in conducting this research was the administration of QPT [Quick Placement Test] as the homogenizing tool. It was administered to 180 beginners and intermediate EFL learners.…

Informed by Segalowitz's (Cognitive bases of second language fluency, Routledge, 2010) L2 speech production model and MacIntyre et al.'s (Mod Lang J 82(4):545-562, 1998. https://doi.org/10.1111/j.1540-4781.1998.tb05543.x) L2 willingness to communicate model, this study sought to understand the influence of cognitive, affective and sociocultural…