Research into second language acquisition (SLA) has shown that individual difference (ID) variables can be strong predictors of language achievement (e.g., Dornyei, 2003; Skehan, 2003). Traditionally, this research conceptualized ID variables as static and monolithic variables (e.g., Dornyei, 2010). More recently scholars have questioned this…

To date, most classroom-based research into the learning of a third language (L3) in the US has examined patterns of acquisition among various groups of bilinguals. Situated mainly within the context of "Portuguese for Spanish Speakers" (PSS), studies typically group learners based on the sequence / age of onset of their main background…

This review paper explores the role of individual differences in second language vocabulary learning, focusing on three key factors: out-of-class exposure (e.g., viewing TV, playing video games and listening to songs), strategic vocabulary learning, and motivation. Individual differences significantly impact vocabulary learning, making it crucial…

Motivation is a foremost aspect in language learning and has been extensively studied in the field of SLA due to its important contribution to pedagogical implications. However, SLA scholars/researchers have overwhelmingly preoccupied specifically with Asian students such as Japanese and/or Chinese (Gong et al, 2020; Kikuchi, 2019). This ignores…

Relatively few studies in the field of second language acquisition have undertaken to investigate the interrelationships of constellations of individual difference variables. This is certainly true of how complexes of ID factors impact motivation to learn an additional language. In order to address this gap, the paper reports a study that examined…

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…

Over the past decade, the focus of investigation in individual differences (IDs) research has shifted from the utilization of large-scale questionnaire surveys toward the adoption of methodological diversity and development of new approaches to second-language (L2) communication (Dörnyei and Ryan [2015]. "The Psychology of the Language…

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…

A number of variables have an influence on language learners' success in the learning of a foreign/second language. Some variables, such as motivation, language anxiety or willingness to communicate (WTC), have been researched extensively in the field of second language acquisition, while others, such as boredom, still remain among "the most…

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 predictive effects of motivational beliefs and self-efficacy on multiple dimensions of self-regulated learning (SRL) strategies in English as a foreign language (EFL) writing. Undergraduate students (n = 389) were recruited voluntarily from four universities in mainland China. They were invited to complete a set of…

This book highlights the roles of several individual difference (ID) variables on the language learning process, exploring them from both the students' and the teachers' perspectives. It presents the results of a large-scale, mixed-methods investigation which was conducted with secondary school pupils and their teachers in Hungary. The…

Although boredom can be regarded as a ubiquitous emotion in most educational settings, including foreign and second language classrooms, and this condition can have a detrimental effect on the process of learning, it has to a large extent escaped the attention of second language acquisition researchers dealing with individual learner differences.…

Research into the role of individual difference (ID) factors in the process of second and foreign language (L2) learning and teaching has been one of the most robust lines of inquiry in the field of second language acquisition (SLA; Dörnyei & Ryan, 2015; Griffiths & Soruç, 2020; Pawlak & Kruk, 2022). Most of these empirical…

Directed motivational currents (DMCs) encapsulate a unique motivational phenomenon. DMCs are highly positive, potent motivational experiences which can carry individuals or groups forwards to achieving valued goals at both a remarkable rate, and with a perceived feeling of seemingly 'effortless effort'. Although research into DMCs began under a…