Research Findings: Measuring toddlers' cortisol levels both in childcare and at home and their relation to child- and childcare-related factors may help to identify stress-inducing childcare practices and children who are more vulnerable to stress in childcare. Accordingly, toddlers' (n = 320, 51.2% female, mean age = 26.8 months) cortisol levels…

Family routines provide young children with predictable, repeatable, and functional contexts for learning about the world. Participating in family routines is a critical pathway by which all children learn. While the use of family routines in caregiver-implemented interventions (CIIs) is supported by theories, research, and recommended practices,…

Children learn the words of their native language(s) from interactions with their caregivers. Although previous research has found that the language children hear during those interactions predicts vocabulary outcomes, few studies have investigated how qualitative features of social interactions work together to affect children's vocabulary…

Within a language, there is considerable variation in the pronunciations of words owing to social factors like age, gender, nationality, and race. In the present study, we investigate whether toddlers link social and linguistic variation during word learning. In Experiment 1, 24- to 26-month-old toddlers were exposed to two talkers whose front…

The goal of this research is to analyze the instrumental behavior of the caregiver at the Emmi Pikler nursery school in Budapest while dressing children from two to three years old to go outdoors to play in the garden. In order to study this routine in its usual context, the observational methodology has been chosen, adopting an "ad hoc"…

Purpose: Disfluencies associated with stuttering generally occur in the initial position of words. This study reviews data from a school-age child with an atypical stuttering profile consisting predominantly of word-final disfluencies (WFDs). Our primary goals were to identify patterns in overt features of WFDs and to extend our understanding of…

This study examined future-oriented behavior in children (3-6 years; N = 193) from three diverse societies--one industrialized Western city and two small, geographically isolated communities. Children had the opportunity to prepare for two alternative versions of an immediate future event over six trials. Some 3-year-olds from all cultures…

There are few studies of behavior problems in preterm children prior to 2 years old and the changes that occur over time. The aims of this study were to examine the patterns and prediction of behavior problems and the effects of gender and socioeconomic status (SES) on behavior problems in preterm children at the toddler and preschool periods.…

Certain social context features (e.g., maternal presence) are known to increase young children's exploration, a key process by which they learn. Yet limited research investigates the role of social context, especially peer presence, in exploration across development. We investigate whether the effect of peer presence on exploration is mediated by…

Evidence-based treatments for autism spectrum disorders (ASD) are comprised of components that identify therapist behavior necessary to implement the treatment with integrity. Some components are shared across approaches from diverse theoretical backgrounds. One component included in several interventions that has not been researched in isolation…

Prosocial behavior in early childhood is a precursor to later adaptive social functioning. This investigation leveraged mother-reported, physiological, and observational data to examine children's prosocial development from age 2 to age 4 (N = 125). Maternal emotion socialization (ES) strategies and children's parasympathetic regulation have each…

Background: Previous research on the etiology of ADHD symptoms suggests that neuropsychological differences may be present as early as birth; however, the diagnosis is typically not given until school age. This study aimed to (a) identify early behavioral and cognitive markers of later significant parent and/or teacher ratings of ADHD…

Multiple levels of category inclusiveness in 4 object domains (animals, vehicles, fruit, and furniture) were examined using a sequential touching procedure and assessed in both individual and group analyses in eighty 12-, 18-, 24-, and 30-month-olds. The roles of stimulus discriminability and child motor development, fatigue, and actions were also…

We examined whether self-restraint in early childhood predicted individual differences in 3 executive functions (EFs; inhibiting prepotent responses, updating working memory, and shifting task sets) in late adolescence in a sample of approximately 950 twins. At ages 14, 20, 24, and 36 months, the children were shown an attractive toy and told not…

Despite the abundance of research on attachment and on the effects of separation, very little research examines the actual processes of separation occurring daily when mothers leave their children (age 6-18 months) in out-of-home group care. In the current study, this everyday process of separation was observed for three months…