The well-known sampling limitation of most longitudinal corpus data can be even more consequential in the study of morphosyntactic variation in child language. An analysis of caregiver input suggests that variable use in overlapping contexts may be hard to find by solely relying on corpus data collected under the sampling procedures that are…

The first stage of combinatorial speech is better described as variable than uniform. Talk of variants obscures two different aspects of language (knowledge and use) and two different aspects of language development -- acquisition of the grammar (competence) and deployment of the grammar in speaking and listening (performance). Null subjects and…

In many so-called canonical null subject languages, null and overt subject pronouns have contrasting referential preferences: null subjects tend to maintain reference to the preceding subject while overt pronominal subjects do not. We propose that children acquire this contrast by initially restricting their attention to 1st and 2nd person…

An accurate portrayal of contemporary Spanish in Costa Rica necessitates the inclusion of a discussion of forms of address. Costa Rica is commonly listed among the countries that include "voseo" as part of its pronominal paradigm. The present descriptive study elucidates the sociolinguistic reality of "voseo" in Costa Rica and…

This paper is motivated by growing, inexorable tensions between societal impetus to advance inclusive (non-binary) linguistic change across many Spanish-speaking communities, and the seemingly removed reality of the Spanish as a world language classroom. As a first step in reconciling these tensions and breaking free from apparent disciplinary…

English ditransitive verbs show a complex alternation between the double object construction (DOC, (1)) and prepositional object datives (POD, (2)). This dissertation examines the acquisition, representation, and learnability of the dative alternation among L2 English learners, presenting experimental data from participants with L1 backgrounds of…

Intensifiers have been the focus of a number of studies over the past decade, with considerable interest in their meaning and variability. Several scholars have discussed the use of such forms, particularly in English (Ito and Tagliamonte 2003, Tagliamonte 2008) and Spanish (Brown and Cortés-Torres 2013; Kanwit et al. 2017), exploring their…

The present study examines the production and intuition of Spanish clitics in clitic left dislocation (CLLD) structures among 26 Spanish heritage speakers (HSs) born and raised in Brazil. We tested clitic production and intuition in contexts in which Spanish clitics vary as a function of the semantic features of the object that they refer to.…

Research in language development has only recently begun to focus on the inherent variability of language. Previous studies have explored at what age children begin to produce variable linguistic forms and how these forms progress through development. While children produce adult-like variation early on, some variable forms take longer to acquire…

This study tests the Competing Systems Hypothesis (CSH) as applied to adult second language acquisition of aspect in Spanish. The CSH purports that differences among tutored and untutored learners result from competition between one system of underlying grammatical knowledge and another of learned metalinguistic knowledge in tutored learners…

Child language acquisition research has provided ample evidence of lexical frequency effects. This corpus-based analysis introduces a novel frequency measure shown to significantly constrain adult language variation, but heretofore unexplored in child language acquisition research. Among adults, frequent occurrence of a form in a particular…

Existing research on second language (L2) pronoun resolution has not yet looked at immediate and cumulative priming effects. By using a sentence comprehension task, the present study aims at priming dis-preferred interpretations for ambiguous pronouns. We test a group of native speakers and a group of intermediate-proficiency L2 learners of…

This dissertation explores Spanish copular verbs, "ser" and "estar" (both 'to be' in English), in pre-adjectival contexts within two Spanish varieties: first-language (L1) Chilean speakers from Santiago (N = 29) and second-language (L2) English-speaking learners studying in Chile (N = 31). Bridging sociolinguistics and second…

Direct object clitics in Latin American Spanish are subject to great variability in features across dialects. Variability also characterizes bilingual acquisition and especially clitic doubling structures in language contact contexts. We focus on the distribution of clitics and Differential Object Marking (DOM) in clitic doubling structures among…

This study examines the variable occurrence of preposition duplication in contexts of coordination in Spanish (e.g., "Fui con mi madre y (con) mi padre"). We build on previous research on this variable morphosyntactic phenomenon (namely, prepositions in contexts of coordination) by expanding the type of data and the independent variables…