The proportion of infants in the United States who are breastfed at 1 year remains well below the Healthy People 2030 target. The health implications of suboptimal breastfeeding durations are significant, including increased risk of childhood leukemia and maternal Type 2 diabetes. Prenatal breastfeeding education provides an opportunity to improve…

Family engagement in childcare is important to ensure the optimal growth, development, and safety of children. Previous research has explored family engagement practices, but limited research is available on the application of theory to explain the uptake of family engagement principles. The purpose of this study was to explore the use and…

This article evaluates the acquisition of directionals in Q'anjob'al, a Western Mayan language of Guatemala. The data come from a longitudinal study of two Q'anjob'al monolingual children of Santa Eulalia, Huehuetenango, Guatemala: Xhuw (1;9-2;5) and Xhim (2;3-3;5). The results show how these children acquire the morphological distribution of…

The purpose of the current study was to use the infant sibling design to explore whether proband traits of autism and ADHD could provide information about their infant sibling's temperament. This could help us to gain information about the extent to which infant temperament traits are differentially associated with autism and ADHD traits. We used…

Data from 83,423 parent reports of temperament (surgency, negative affectivity, and regulatory capacity) in infants, toddlers, and children from 341 samples gathered in 59 countries were used to investigate the relations among culture, gender, and temperament. Between-nation differences in temperament were larger than those obtained in similar…

We compared dyad-focused maternal speech (protoconversations and maternal speech describing the dyad) in interactions of mothers with their twin and singleton infants. Nine twins and nine singletons, coming from urban areas of Crete (Greece), were video-recorded at home in spontaneous face-to-face interactions with their mothers, from the 2nd to…

The current study examines the association between the mother-caregiver relationship and the psychological well-being of 533 mothers who transitioned their children to a non-familial licensed childcare center. Maternal well-being, mother-caregiver relationship quality, and maternal parenting stress were assessed. Hierarchical linear regressions…

Background: Despite evidence on their short-term effectiveness, the long-term effects of group-based parenting interventions are unclear, programs are hard to scale up, and effects on parents of infants and toddlers are mixed. Objective: We evaluate the impact of a parenting intervention, "Crianza Positiva," that combines 8 group…

This longitudinal multiple-case study research focused on the scaffolding strategies that two Israeli deaf mothers use to boost their young hearing children's engagement in reading interactions. Despite being significant to language learning, few studies have examined the dialogic reading practices of deaf-signing mothers. The study shows that…

The present study explored the association between the structural quality of child care, caregivers' sensitive responsiveness, children's involvement in play and activity in the setting, and children's expression of aggression. Eighty-four early childhood care settings were classified into either high (29) or low structural quality (55) based on…

Exposure to diverse peers can expand children's experiences and skillsets, and these positive effects linger beyond childhood. Yet, little is known about the ethnic/racial, gender, and age diversity in children's peer groups and how it may shift over time. Even less is known about these patterns among US nonwhite children. In the present study, we…

Prodromal symptoms of Autism Spectrum Disorder (ASD) have been detected within the first year of life. This review evaluated evidence from randomized controlled trials (RCTs) of parent-mediated interventions for infants under 24 months who are at risk for ASD. Electronic databases, including grey literature, were searched up till November 2019.…

Children's vocabulary ability at school entry is highly variable and predictive of later language and literacy outcomes. Sleep is potentially useful in understanding and explaining that variability, with sleep patterns being predictive of global trajectories of language acquisition. Here, we looked to replicate and extend these findings. Data from…

This study examined the concurrent validity of a tummy time questionnaire and time-use diary against an accelerometer measure. Participants were 29 parents and their 6-month-old infants from the Early Movers project in Edmonton, Canada. Tummy time was concurrently measured using a parental questionnaire, a time-use diary, and a validated GENEActiv…

Repetition is a salient strategy used by human and non-human cohorts for learning and controlling behavior. It this research project, a case study was conducted to explore deliberate voluntary repetition in younger cohorts during their spontaneous solitary play with single or multiple objects. Two main types of repetition -- blocked and random --…