This paper probes into implicit language aptitude (LA), a set of cognitive abilities that showcase learners' unconscious, automatic second language (L2) attainment. Implicit LA is becoming an important part of aptitude research, and advances the understanding of L2 learning mechanism. This paper critiques the construct of implicit LA and proposes…

The effect of language aptitude on grammar attainment of second language learners with different ages of onset became one of the hot topics in the last decades. However, most previous studies were conducted in a second language context with inconsistent results, and few studies were conducted in a foreign language context. To fill this gap, the…

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…

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…