Impaired procedural learning has been suggested as a possible cause of developmental dyslexia (DD) and specific language impairment (SLI). This study examined the relationship between measures of verbal and non-verbal implicit and explicit learning and measures of language, literacy and arithmetic attainment in a large sample of 7 to 8-year-old…

Research over the past 2 decades has demonstrated that infants are equipped with remarkable computational abilities that allow them to find words in continuous speech. Infants can encode information about the transitional probability (TP) between syllables to segment words from artificial and natural languages. As previous research has tested…

This study examined socioeconomic gradients in different domains of early child development using data from the validation sample of the East Asia-Pacific Early Child Development Scales. The Scales were administered to 7797 3- to 5- year-olds (3889 girls) from Cambodia, China, Mongolia, Papua New Guinea, Timor-Leste, and Vanuatu and children's…

This commentary draws on the four articles in this issue to discuss interactional competence from a usage-based perspective. The usage-based conception of language knowledge as an inventory of form-meaning pairings used for communicative purposes will be qualified by incorporating the idea that these communicative purposes are social actions. L2…

Children's development of the functional category of articles can be explained in two ways. One approach assumes that children are equipped with innate knowledge of the category, while the other assumes that children's early articles are limited-scope formulae. Using Eisenbeiss's (2000) criteria for determining the status of DPs, developed for a…

The experimenter conducted three experiments to compare incidental language acquisition of familiar and non-familiar stimuli, and asses the effects of specific pairing experiences on the emergence of bidirectional naming (BiN) for familiar and non-familiar stimuli. In Experiment I the experimenter assessed the numbers of accurate untaught listener…

Research Findings: This study used the Theoretical Domains Framework (TDF) to examine barriers to teachers’ implementation of a supplemental academic language curricula. Despite high satisfaction with this scripted curriculum, three past studies indicated heterogeneity in teachers’ fidelity of implementing the curriculum as well as difficulty…

Purpose: The language that children hear early in life is associated with their speech-language outcomes. This line of research relies on naturalistic observations of children's language input, often captured with daylong audio recordings. However, the large quantity of data that daylong recordings generate requires novel analytical tools to…

This study deals with speech acts addressed to Hadza infants in Tanzania, a group that has traditionally lived off hunting and gathering. Three research questions are addressed: How do Hadza speech acts compare with those found in previous studies in other cultures? Are there differences between child and adult speakers? And do speech acts differ…

When an adult migrant begins to acquire a second language, it is often presumed that the learner is already equipped with first language literacy and can therefore transfer these same literacy skills during their acquisition of the new, second language. However, many adult second language (L2) learners lack the opportunity to develop first…

The purpose of this preliminary study was to (a) examine relationships between the symbolic and language skills of a mixed (developmental language disordered [DLD] and typical language [TL]) Spanish-speaking sample; (b) describe gesture, play, and language skills of DLD and TL groups; (c) compare the development between groups; and (d) explore…

This article provides a timeline of research on form-focused instruction (FFI). Over the past 40 years, research on the role of instruction has undergone many changes. Much of the early research concentrated on determining whether formal instruction makes any difference in the development of learner language. This question was motivated in part by…

English has a word-minimality requirement that all open-class lexical items must contain at least two moras of structure, forming a bimoraic foot (Hayes, 1995).Thus, a word with either a long vowel, or a short vowel and a coda consonant, satisfies this requirement. This raises the question of when and how young children might learn this…

Children acquiring French elaborate their early verb constructions by adding adjacent morphemes incrementally at the left edge of core verbs. This hypothesis was tested with 2657 verb uses from four children between 1;3 and 2;7. Consistent with the Adjacency Hypothesis, children added clitic subjects frst only to present tense forms (as in…

The present study examined the effects of part and whole learning on the acquisition of second language (L2, English) vocabulary. In whole learning, the materials to be learned are repeated in one large block, whereas, in part learning, the materials are divided into smaller blocks and repeated. Experiment 1 compared the effects of the following…