Fragmented sleep is common in infancy. Although night awakening is known to decrease with age, in some infants night awakening is more persistent and continues into older ages. However, the influence of fragmented sleep on development is poorly known. In the present study, the longitudinal relationship between fragmented sleep and psychomotor…

Studies on the relationship between bookreading and language development typically lack data about which books are actually read to children. This paper reports on an Internet survey designed to address this data gap. The resulting dataset (the Infant Bookreading Database or IBDb) includes responses from 1,107 caregivers of children aged 0-36…

Socioeconomic disparities in early language are widespread and have long-lasting effects. The aim of this study is to investigate when social gaps in language problems arise and how they change across the first years of schooling. We address this question in two large longitudinal Norwegian datasets: the Behavior Outlook Norwegian Developmental…

Research findings: Developing adequate socioemotional competencies is of great relevance for later health and academic outcomes. Shared book reading creates valuable social situations that provide opportunities to talk about characters' emotions and social interactions with children and thus might contribute to children's socioemotional…

Children's narrative abilities in the preschool years have been found to predict their later literacy skills. Mothers' verbalizations during shared personal narratives with their preschoolers have been shown to facilitate children's development of narrative skills. The present study sought to extend the literature by investigating mothers' use of…

An in-depth examination of the acquisition of grammatical gender has not previously been conducted for Irish, an endangered indigenous language now typically acquired simultaneously with English, or as L2. Children acquiring Irish must contend with the opacity of the Irish gender system and the plurifunctionality of the inflections used to mark…

The current study examines the relationship between bilingual children's dual language experience (i.e. language input, language output and vocabulary proficiency), and their social-emotional and behavioral skills. Data were analysed from 805 Singaporean bilingual preschoolers (ages 4; 1-5; 8 years), who are learning English and either Mandarin (n…

This mixed two-way experimental, cross-sectional study investigated fast-mapping (FM) of novel nouns and verbs in 63 Persian-speaking toddlers aged 30 months, including 31 late-talking (LT) and 32 typically developing (TD) matched with respect to age and maternal education. Toddlers were classified as LT if they had limited expressive vocabulary…

This study set out with the aim of assessing whether Multiple Intelligences profiles of Iranian students would exert any influence on their use of language learning strategies as important determining factors in the language learning. Additionally, we explored the role of gender and different proficiency levels on EFL learners' multiple…

Background: Developmental language disorder (DLD) is common in children, but little is known about its association with quality of life (QoL) in middle childhood. QoL is a complex construct, aligning with an individual's sense of well-being and is related to functional limitations associated with DLD. Biopsychosocial models of disability account…

The present study uses oral interviews with foreign language learners in search of influential factors in their language learning histories. The sample for the study was drawn from a larger sample of intermediate/advanced learners of English as a foreign language with a minimum of 10 years of exposure/instruction. The sample includes 6 early…

We examined the impact of television viewing at ages 3 and 4 on vocabulary and at age 5 on executive functioning in the context of home learning environment and parental scaffolding. Children (N = 263) were seen in the lab when they were 3 years old and then again at ages 4 and 5. Parents completed measures assessing child television viewing and…

This study investigated the potential interrelationship between parental (maternal) and expert assessments of the expressive and receptive language skills of 12- to 18-month-old children. The language activities of 27 children were monitored by their mothers (MCDI scale: Lyytinen, 2000. "Varhaisen kommunikaation ja kielen kehityksen…

Early language development predicts later reading competence, but does reading to young children enhance the language interaction between them and their parents? Automatic assessment of language interaction now yields adult word counts, conversational turn counts and child vocalization counts. This study had 98 families return reading activity…

This study examined two common accounts of heritage speakers' nonnative attainment in their heritage/first language (L1), one attributing it to the influence of the second language (L2) and another to insufficient L1 input. Three groups of children who were heritage speakers of Arabic and who varied in their age of L2 exposure and type and amount…