Ensuring internal validity in quantitative research requires, among other conditions, reliable instrumentation. Unfortunately, however, second language (L2) researchers often fail to report and even more often fail to interpret reliability estimates beyond generic benchmarks for acceptability. As a means to guide interpretations of such estimates,…

Song is a universal human phenomenon that can shed much light on the nature of language. Despite this, field linguists are not always equipped with the knowledge and skills to analyze song texts and draw out their significances to other areas of language. Furthermore, it is not uncommon for a language community to ask linguists working in the…

Second language acquisition researchers often face particular challenges when attempting to generalize study findings to the wider learner population. For example, language learners constitute a heterogeneous group, and it is not always clear how a study's findings may generalize to other individuals who may differ in terms of language background…

This edited volume offers critical reflections on an essential component of research method in the field of second language acquisition -- data. Scholars working on diverse areas (e.g., pragmatics, corrective feedback, phonology) and approaches (e.g., corpus linguistics, concept-oriented analyses, variationism) have come together to identify…

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…

Good practice in primary research has evolved over many decades of research in applied linguistics to counter human fallibility and biases. Surprisingly, perhaps, synthesising such research in an entire field has only recently started to develop its own methodologies and recommendations. This paper outlines some of the issues involved, especially…

Children's status as research participants in applied linguistics has been largely overlooked even though unique methodological and ethical concerns arise in projects where children, rather than adults, are involved. This article examines the role of children as research participants in applied linguistics and discusses the limitations of…

This paper reports on a promising methodology for multilingualism studies that was trialled at the National Institute of Education (NIE) on the campus of Nanyang Technological University (NTU), Singapore, in 2018. The methodology named the Aural-Oral Transect (AOT) is a systematic, easy-to-implement, unbiased way of collecting quantitative data on…

Parametric analyses such as t tests and ANOVAs are the norm--if not the default--statistical tests found in quantitative applied linguistics research (Gass 2009). Applied statisticians and one applied linguist (Larson-Hall 2010, 2012; Larson-Hall and Herrington 2010), however, have argued that this approach may not be appropriate for small samples…

This paper presents a set of guidelines for reporting on five types of quantitative data issues: (1) Descriptive statistics, (2) Effect sizes and confidence intervals, (3) Instrument reliability, (4) Visual displays of data, and (5) Raw data. Our recommendations are derived mainly from various professional sources related to L2 research but…

In this paper I review the methodology that I used in beginning my early fieldwork on a tonal Athabaskan language, including preparation through reading and listening, working with speakers, organizing data, and describing and analyzing the data, stressing how these are not steps or stages, but intersect and interact with each other.

Three studies test the link between word order in binomials and psychological and demographic characteristics of a speaker. While linguists have already suggested that psychological, cultural and societal factors are important in choosing word order in binomials, the vast majority of relevant research was focused on general factors and on broadly…

Children acquiring a range of languages have difficulties in the interpretation of personal pronouns. Ongoing debates in the relevant literature concern the extent to which different pronoun types are subject to this phenomenon, as well as the role of methodology in relevant research. In this study, we use two different experimental tasks to…

Research synthesis and meta-analysis provide a pathway to bring together findings in a given domain with greater systematicity, objectivity, and transparency than traditional reviews. The same techniques and corresponding benefits can be and have been applied to examine methodological practices in second language (L2) research (e.g., Plonsky,…

This article examines the language and cognitive skills of bidialectal and bilingual children, focusing on African American English bidialectal speakers and Spanish-English bilingual speakers. It contributes to the discussion by considering two themes in the extant literature: (1) linguistic and cognitive strengths can be found in speaking two…