The purposes of the study were to determine (a) the ability of two spontaneous language measures, mean length of utterance in morphemes (MLU-m) and number of different words (NDW), to identify African American preschool children at low and high levels of language ability; (b) whether child chronological age was related to the performance of either…

Spoken verb tense use in three groups of Spanish speakers with expressive limitations, namely, children with specific language impairment, bilingual children with first language (L1) (Spanish) attrition and adults with agrammatism, was compared in order to examine the possible impact of conversational tense frequency on expressive production.…

In the present study, we address two questions concerning the relation between children's false belief and their understanding of complex object complements. The first question is whether the previously demonstrated association between tensed complements and false belief generalizes to infinitival complements (de Villiers & Pyers, 2002). The…

Purpose: This study examined whether lexical frequency, semantic knowledge, or sentence context affect children's production of primary stress in derived words with stress-changing suffixes (e.g., "-ity"). Method: Thirty children (M[subscript age] = 9;1 [years;months]) produced a limited set of high-frequency (HF) and low-frequency (LF) derived…

Purpose: Many typically developing children first use inflections such as "-ed" with verb predicates whose meanings are compatible with the functions of the inflection (e.g., using "-ed" when describing events of brief duration with clear end points, such as "dropped"). This tendency is assumed to be beneficial for…

This highly regarded work brings together prominent authorities on vocabulary teaching and learning to provide a comprehensive yet concise guide to effective instruction. The book showcases practical ways to teach specific vocabulary words and word-learning strategies and create engaging, word-rich classrooms. Instructional activities and games…

The purpose of the present study was (1) to determine whether speech rate, utterance length, and grammatical complexity (number of clauses and clausal constituents per utterance) influenced stuttering-like disfluencies as children became more disfluent at the end of a 1200-syllable speech sample [Sawyer, J., & Yairi, E. (2006). "The effect of…

Children with specific language impairment (SLI) often have extraordinary difficulty in the use of tense and agreement morphemes. Because spontaneous speech samples may not provide a sufficient number of obligatory contexts for these morphemes, structured probe items are often employed. However, these usually emphasize actions that can be readily…

The foundation of all learning is rooted in the development of language and literacy abilities. Literacy development begins well before children enter school and can accelerate in an early childhood classroom setting. Teacher educators often hear about the importance of literacy development. In particular, the significance of phonological…

The development of the use of the third-person singular -s in open syllable verbs in children with specific language impairment (SLI) and their typically developing peers was examined. Verbs that included overt productions of the third-person singular -s morpheme (e.g. "Bobby plays ball everyday;" "Bear laughs when mommy buys…

Purpose: To compare morphosyntactic skills of preschoolers in different subgroups of language impairment. Method: Eighty-three children participated in this study. They represented 4 groups: (a) language impairment-only, (b) speech-language impairment with minimal or no final cluster reduction/consonant deletion, (c) speech-language impairment…

Understanding how words are created is potentially a key component to being able to learn and understand new vocabulary words. However, research on morphological awareness is relatively rare. In this study, over 660 preschool-aged children from three language groups (Cantonese, Mandarin, and Korean speakers) in which compounding morphology is…

This study investigated the nature of morphological awareness and its relation to learning to read Chinese characters among 46 Chinese-speaking preschool children. The children took a morphological awareness task, which varied in semantic transparency and morpheme position. Children's vocabulary knowledge and extant character reading ability were…

This study examined the effect of lexical aspect and phonology on regular past-tense production. Data are presented from a group of 31 children, mean age 33 months, with typical language development. A case study of a 50-month-old child with Specific Language Impairment (SLI) is also presented. Children imitated sentence pairs that included an…

Two experiments investigated the factors that govern children's use of singular and plural forms of count nouns. Experiment 1 used an elicited production task to investigate whether children use referential and/or syntactic information to determine the form of the count nouns when the two sources of information conflict (e.g. "each x, one of the…