Researchers often make claims regarding the importance of predictor variables in multiple regression analysis by comparing standardized regression coefficients (standardized beta coefficients). This practice has been criticized as a misuse of multiple regression analysis. As a remedy, I highlight the use of dominance analysis and random forests, a…

Analogies of the biotic modality within the technical sphere center on notions of vitality, differentiation of function, organization, adaptation and development. On the norm side, these organic analogies allow us to envision technical norms for the development of applied linguistic artefacts, which underlie the coming to fruition and maturation…

Researchers in second language (L2) and education domain use different statistical methods to assess their constructs of interest. Many L2 constructs emerge from elements/parts, i.e., the elements "define" and "form" the construct and not the other way around. These constructs are referred to as emergent variables (also called…

The current study aims to demonstrate how the lack of a conceptual framework and the inadequate use of confirmatory factor analysis (CFA) in second language (L2) acquisition validation studies can lead to misconceptions about the nature of data collected via different measurement instruments. To this end, we reanalyzed data from three…

This article is a conceptual and methodological exploration of a new construct, task interactional difficulty, and of a possible approach to assessing task demands in general. After arguing for the use of 'task difficulty' instead of 'task complexity', the notion of task interactional difficulty is analyzed, first by reviewing previous SLA…

Much of applied linguistics research has been concerned with classroom-based second language (L2) development as it offers an ideal setting for examining the institutional ecology of L2 learning and teaching. However, scholars have continued to call for greater attention to the operationalization of constructs, selection of valid assessments, and…

Loanwords in Japanese that share form and meaning with English words are referred to as "Japanese-English cognates" (e.g., [Japanese symbol omitted] "radio") and are of fundamental concern for researchers concerned with vocabulary learning and instruction. This concern is reflected in the growing body of research into…

Second language (L2) researchers often have to develop or change the instruments they use to measure numerous constructs (Norris & Ortega, 2012). Given the prevalence of researcher-developed and -adapted data collection instruments, and given the profound effect instrumentation can have on results, thorough reporting of instrumentation is…

This article suggests a method to deal with cross-linguistic differences in children with Specific Language Impairment. The differences in vulnerable structures reflect typological properties of the surrounding language (e.g., Leonard 2014a, 2014b). This article adds a developmental perspective to the discussion by interpreting the vulnerable…

This article positions research on the acquisition of pragmatics as an inquiry in the greater field of second language acquisition research. Viewing pragmatics from this intersection, I consider five areas of research that are of interest in both fields and have the potential to make significant contributions to second language pragmatics…

This article addresses age-related attainment effects in second language acquisition, posing the question of whether such effects are to be explained in terms of a Critical Period with a predictable and abrupt offset point or in terms of the impact of a wider range of factors. It attempts to explore this question by focusing on four discussion…

Research at the interface of bilingual development and child language disorders has increased greatly in the past decade. The purpose of this article is to highlight the theoretical and clinical implications of this research. Studies examining the similarities in linguistic characteristics between typically developing sequential bilingual children…

This article provides a comprehensive synthesis of research on language attrition to date, with a view to establishing a theoretically sound basis for future research in the domain of second language (L2) attrition. We identify the variables that must be tracked in populations who experience language loss, and we develop a general model for the…

This research creates an empirically derived, pedagogically useful list of formulaic sequences for academic speech and writing, comparable with the Academic Word List (Coxhead 2000), called the Academic Formulas List (AFL). The AFL includes formulaic sequences identified as (i) frequent recurrent patterns in corpora of written and spoken language,…

Children from bilingual backgrounds are sometimes overidentified with language impairment (LI) because educators do not have appropriate developmental expectations. At other times bilingual children are underidentified because educators wait to identify difficulties while children learn the second language. In this review we discuss data on…