Over the past three decades studies investigating heritage speaker (HS) linguistic competencies have shown, time and again that, despite being L1 or 2L1 native speakers of their home language(s), HS outcomes display variation across a wide spectrum of differences as compared to each other, other types of bilinguals as well as their monolingual peers. Studies have traditionally used—mostly behavioral—methodologies rooted in adjacent established fields (e.g., L1 acquisition, adult L2 acquisition) offering, in addition to documenting and describing HS performance, important insights for linguistic theory and challenges related to (home/minority) language maintenance, contact, policy and more. A birds-eye view makes it clear that the methodologies one uses to tap into HSs’ linguistic knowledge areas, if not more, are important than the phenomena under investigation, especially in light of how their unique experiences with their heritage and other languages are present across a continuum.

Complementizers offer a window into the architecture of the left-periphery and further our understanding of the demarcation of the boundaries between the C(omplementizer) and T(ense) domains. Using the articulated left-periphery as a laboratory and Spanish constructions featuring more than one complementizer as a point of departure, the author delivers new insights into the syntactic positions and behavior of Spanish complementizer que along the left edge. These observations have far-reaching consequences to such fundamental linguistic concepts as the derivation of left dislocations, ellipsis, and locality of movement. Of great interest to syntax graduate students and researchers in general, this volume provides a stepping stone to cracking the code on several current syntactic questions, including the widely-contested position of preverbal subjects in null-subject languages like Spanish. In addition, it offers the linguist a bountiful toolbox for the cross-linguistic investigation of a number of left-peripheral and clausal phenomena.

This book presents comprehensive, thorough and updated analyses of key cognitive individual difference factors (e.g., age, intelligence, language aptitude, working memory, metacognition, learning strategies, and anxiety) as they relate to the acquisition, processing, assessment, and pedagogy of second or foreign languages. Critical reviews and in-depth research syntheses of these pivotal cognitive learner factors are put into historical and broader contexts, drawing upon the multiple authors' extensive research experience, penetrating insights and unique perspectives spanning applied linguistics, teacher training, educational psychology, and cognitive science. The carefully crafted chapters provide essential course readings and valuable references for seasoned researchers and aspiring postgraduate students in the broad fields of instructed second language acquisition, foreign language training, teacher education, language pedagogy, educational psychology, and cognitive development.