The goal of this paper is to tease apart two approaches to the source of children's consistent scope assignment in negative sentences containing logical connectives: the Semantic Subset Principle and the Semantic Subset Maxim. Previous developmental work has observed that four- to six-year-old children across languages have difficulty with…

Background: During grammatical treatment of children with developmental language disorder (DLD), it is natural for therapists to focus on the grammatical details of the target language that give the children special difficulty. However, along with the language-specific features of the target (e.g., for English, add -s to verbs in present tense,…

Adults find negative sentences difficult to process, but an informative context can facilitate processing substantially, suggesting that much of this difficulty may come from the pragmatics of negation. Are children sensitive to the pragmatics of negation as well? Although children perform poorly on many tests of negation comprehension, we argue…

Purpose: The primary purpose of this study was to examine the development of past tense counterfactual (PTCF) sentences ("If the dog had stayed in the house, he would not have bitten the police officer") in young adolescents and young adults, addressing both production and comprehension. The goal was to determine if growth occurs during…

This cross-sectional study investigated the use of four verbal indices of social knowledge (personal pronouns, verb conjugations, people words and mental state language) and their concurrent relations in a sample of 287 Italian-speaking children between 18 and 36 months. Results showed that the production of all indices increased with age. Mental…

According to the Integration of Multiple Patterns hypothesis (IMP; Treiman & Kessler, 2014), the spelling difficulty of a word is affected by the number of cues converging on the correct answer. We tested this hypothesis in children's regular past tense formation in Dutch. Past tenses are formed by adding either-"de"…

Purpose: In this study, the authors examined the role of syllabic structure in nonword repetition performance in typically developing (TD) children and children with specific language impairment (SLI). Method: Eighteen children with SLI (5;7--6;7 [years;months]) and 18 TD children matched for chronological age were tested on their ability to…

The acquisition of systematic patterns and exceptions in different languages can be readily examined using the causative construction. Persian allows four types of causative structures, including one productive multiword structure (i.e. the light verb construction). In this study, we examine the development of all four structures in Persian child…

Results of a study are presented that suggest the grammatical structures of English some deaf and hard of hearing students struggle to acquire. A review of the literature from the past 40 years is presented, exploring particular lexical and morphosyntactic areas in which deaf and hard of hearing children have traditionally exhibited difficulty.…

This study is an investigation of the acquisition of existential constructions (ECs) in English and in Spoken Arabic. It is the first of its kind in that it examines the acquisition of the pieces and the features that form ECs; namely, existential "there," the copula, definiteness, and agreement for English and existential "fii," definiteness,…

Two recent papers (de Villiers & Johnson, 2007; Johnson, de Villiers & Seymour, 2005) have claimed that children have difficulty with verbal "-s" until five- six-years-old. This contrasts with perceptual studies showing evidence for sensitivity to the grammatical properties of verbal "-s" as young as 1;4. These apparently conflicting findings can…

Samples of the communicative behavior of a group of mildly mentally retarded adults were examined for indications of mature linguistic competence (specifically, grammatical morpheme and complex sentence use).Findings confirmed the expectation that the eventual mastery of these aspects of linguistic competence in higher-level retarded individuals…