All communication systems rely on sets of rules that must generally be followed for successful communication to be possible; in the case of human language, these rules are given by the grammar. However, despite these rules, there is considerable variation that has been noted across the grammar. In this dissertation, I explore one understudied…

The system of second person singular forms of address (2PS) in Medellín, Colombia is tripartite consisting of "tú, vos," and "usted," while also including the existence of a dual "usted." The current study compares usage of the intimate "usted" versus the distant "usted" with data from an oral…

We report on a conceptual replication of Révész (2012) in order to investigate the idea whether learners provided with recasts do engage in different kinds of behavioral engagement as a function of their working memory and if/how this engagement comes to bear on performance on different measures. Engagement with recasts was measured through a…

We investigated the acquisition of Hindi split ergativity (zero or "-ne" marking) and Hindi differential object marking (DOM; zero or "-ko" marking) by L1 speakers of Dutch. Both grammatical phenomena are conditioned by multiple syntactic and semantic features. On a descriptive level, the study aims to examine when and how…

Languages differ in their realization of the subject argument: non-null-subject languages, like English, require subjects to be phonologically overt; rather, null-subject languages, like Greek, allow the subject to be overt or null. This cross-linguistic difference can lead to the transfer of grammatical properties across languages during…

Feature-based approaches to acquisition principally focus on second language (L2) learners' ability to perceive non-native consonants when the features required are either contrastively present or entirely absent from the first language (L1) grammar. As features may function contrastively or allophonically in the consonant and/or vowel systems of…

This study compares the effects of distributed versus massed corrective feedback (CF) on Spanish differential object marking (DOM). Forty-eight Spanish learners completed three communicative tasks with a researcher on three consecutive days, one task per day. Partial recasts were used to reformulate DOM errors. The distributed group (n = 16)…

Following calls for more modality-sensitive perspectives of SLA, this study investigated the extent to which (a) producing the second language (L2) in the oral modality impacts learner-generated noticing and L2 development of grammatical structures embedded in subsequent auditory input, and whether (b) engaging in L2 production and input…

This study investigated three key issues in heritage language (HL) research. Previous research shows HL speakers have an advantage on oral production tasks compared to L2 speakers who instead perform better on written tasks. Furthermore, both L2 and HL speakers are claimed to have a "yes-bias" towards retaining ungrammaticality in GJTs.…

The present study investigated the effects of different types of form-focused instruction (FFI) on the acquisition of French grammatical gender attribution. A quasi-experimental study was conducted with 140 participants in six intact French as a second language (L2) classes. The classes received six 80-minute instructional sessions consisting of…

It is well known that English speakers produce fewer pronouns when discourse contexts include more than one entity that matches the gender of the pronoun, i.e., gender effect. It is controversial, however, what causes the gender effect. Some suggest that it results from speakers' avoidance of linguistic ambiguity, while others suggest that it…

Research on the acquisition order of inflectional morphemes in English has shown that third-person singular "-s" (3SG"-s") is challenging to acquire and acquired later than "be" copula by both L1 and L2 learners of English. In a departure from the usual practice of controlled elicitation, the current study…

Interaction has received attention in different fields of applied linguistics. In the field of Second Language Acquisition (SLA), scholars have perceived interaction as a platform where L2 learners can engage in language experimentation. It has been considered in light of Long's (1981) Interaction Hypothesis, which posits that negotiation of…

This article examines how second language (L2) interactional competence is manifested in students' use of "and"-prefaced turns when doing meaning-focused oral tasks in pairs and small groups. Drawing on video recordings from English-as-a-foreign-language upper-secondary classes recorded in Czechia and Finland, 86 sequences involving…

This article reports on an experimental study on the acquisition of prepositional relative clauses in second language European Portuguese by Chinese native speakers. It focuses on the role of resumption, mandatory in prepositional relative clauses in Chinese (the native language of the learners) and non-conventional in European Portuguese (the…