In a series of sentence-picture verification studies we contrasted, for example, "… choose the balloon with "… inflate the balloon" and "… the inflated balloon" to examine the degree to which different representational components of event representation (specifically, the different object states entailed by the inflating…

Purpose: Our study analyzes probabilistic constraints on subject expression previously found in adult Spanish in the speech of typically developing (TD) Spanish-speaking children and children with developmental language disorder (DLD). Previous work shows that children with DLD produce fewer overt subjects than typically developing children, and…

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…

This dissertation is about the learnability of different generative, Separationist approaches to nominal morphosyntax. The core of my investigation is number, gender, and declension class, as manifested across nouns, adnominals (adjectives, numerals, demonstratives, and quantifiers), and articles. An extreme position would require that all of…

Yamdena is an Austronesian language of eastern Indonesia. Although many language materials are available, the language has received very little scientific attention. In this article, I present the Yamdena corpus, which includes glossed legacy materials and original fieldwork. I also give an up-to-date introduction to Yamdena grammar, sketching its…

This dissertation interrogates the representation of syntactic locality constraints, specifically intervention locality, within child grammar. Our focal point is the Intervention Hypothesis, which suggests that children are governed by a strict version of featural Relativized Minimality, leading to comprehension difficulties when partial featural…

Languages tend to have three major clause types (declaratives, interrogatives, imperatives), dedicated to three main speech acts (assertions, questions, commands). However, the particular forms that these clause types take differ from language to language, and have to be learned. Previous experimental results suggest that by 18 months old,…

Purpose: The American Speech-Language-Hearing Association requires speech-language pathologists (SLPs) to be aware of language disorders versus language differences. SLPs are likely to provide clinical services to Navajo and other Native American children with communication disorders. Therefore, the purpose of this article is to educate SLPs who…

Grammatical awareness of syntax and morphology is important in children's literacy development for both reading and writing. Hebrew, a language with rich inflectional morphology, marks nouns for plural number in conjunction with gender. Hebrew attributive adjectives agree with noun number and gender in the same noun phrase, while predicative…

Bilingualism in Jamaica is of considerable consequence, as most individuals are early bilinguals, speaking both a variety of Jamaican Creole (JC) from birth and having standardized English (sE) as the language of instruction in education. Immigrants from Jamaica to the United States are an ideal population to examine how cross-linguistic influence…

Background: Despite its importance, in-depth analysis of connected speech is often neglected in the diagnosis of primary progressive aphasia (PPA) -- especially for the logopenic variant (lvPPA) for which unreliable differential diagnosis has been documented. Only a few studies have been conducted on this topic in lvPPA. Aims: The aim of this…

Purpose: Speech-language pathologists (SLPs) play an integral role in identification and treatment of developmental language disorders (DLD). Best practices include the use of language sample analysis (LSA) as part of a comprehensive evaluation. However, LSA requires a specific set of foundational morphological and syntactic knowledge. Previous…

Existential negation is the one type of negation present in languages, which its item is called "negative existential", and it provides to tell the case of "absence", "lack", "there is not", "poor", "empty", "dead" etc. Negative existentials are generally used for the common…

The purpose of this study was to compare developmental trajectories of oral language acquisition of children who are deaf and hard of hearing (DHH) and children with typical hearing across the preschool years. Thirty children who are DHH who use amplification and spoken language and 31 children with typical hearing completed an early language and…

Singular "they" is becoming increasingly common and accepted, but many people find it difficult to learn, instead making seemingly-counterintuitive errors like "she uses they/them pronouns." Existing pronoun production models argue that speakers select pronouns based on morphosyntactic information associated with a name, or…