This paper introduces the Lang-Track-App, a smartphone application and backend system to aid second language acquisition researchers in implementing the experience sampling method (ESM). Surveying research participants with the Lang-Track-App multiple times per day can yield exceptionally rich data that can be analyzed in multiple ways. This…

It has been known since at least the 1960s that small changes in pupil diameter in response to a mental task are indicative of processing effort associated with this task. More recently, with the advent of modern eye-trackers, which also measure the pupil diameter, pupillometry has been "rediscovered" by language researchers and 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…

As in any field of scientific inquiry, advancements in the field of second language acquisition (SLA) rely in part on the interpretation and generalizability of study findings using quantitative data analysis and inferential statistics. While statistical techniques such as ANOVA and t-tests are widely used in second language research, this review…

In this article we introduce language acquisition researchers to two broad areas of applied statistics that can improve the way data are analyzed. First we argue that visual summaries of information are as vital as numerical ones, and suggest ways to improve them. Specifically, we recommend choosing boxplots over barplots and adding locally…

Discusses dependence and frequency data in second language acquisition research and investigates the violation of the "independent observation" assumption as well as the effect of including interaction terms in frequency data analysis. Argues in favor of using multifactorial frequency data analyses over multiple chi-squares to take into account…

Responds to an article on top-down versus bottom-up analyses of interlanguage data in second language acquisition research that argues in favor of using multifactorial frequency data analyses over multiple chi-squares to take into account dependence and interaction of the frequency data. (Author/VWL)

Much research has posited a developmental sequence approach in second-language acquisition. This study reexamines the original social-psychological research upon which the multidimensional model is based and shows that it is incorrect because of faulty analysis. It also examines the limited applicability/generalizability of the developmental…

The results of this study raise serious questions about the validity of cross-sectional studies of second language acquisition based on instrument-solicited morpheme data. The analysis of spontaneous data examined longitudinally suggests that such data may provide richer insights into the second language acquisition process. (Author/POP)

Argues that not only is the study of interaction in second language acquisition (SLA) predicated on a socially impoverished view of interaction, but also that the types of data frequently used for investigating questions of interaction in a second language may not be adequate for determining what really occurs in such interactions. (15 references)…

Addresses the relationship in second language acquisition (SLA) research between theory and data. Suggests a potential problem for the field of SLA; a lessening rigor in data analysis where theory moves more into focus. Documents how the problem manifests itself in a specific area of research in SLA--syntax and morphology--then discusses possible…

Several theories on bilingualism are studied and compared. (PP)

Examines the relationship between language universals and language acquisition, comparing data from studies on first and second language acquisition and universals of relative clause formation. It is concluded that second language acquisition data provide a clearer window for the investigation and verification of language universals than first…

The Lancaster-Leeds Language Learning in Large Classes Research Project in United Kingdom is examined to focus attention on its importance as a major research effort. Some major flaws in the project are described. (10 references) (Author/LB)

Results of a study of two methods of morpheme quantification--one by suppliance in obligatory contexts, the other by target-like use--produced substantially different percentages of accuracy for subjects' production of the morphemes progressive "-ing," progressive auxiliary, and past irregular. This demonstrates that, as a consequence of applying…