Communication Accommodation Theory (CAT) predicts that people adjust their language to match that of the other to promote comprehension, coordinate action, and facilitate harmonious relationships. CAT predicts that mothers will adjust their sentence length and complexity to match those of children. Prior tests of CAT confounded trait-like language…

Despite the documented rise of children's use of mobile media devices in the United States, particularly in lower-income homes, there is limited research on how children and parents interact together with these types of devices. This study sought to describe and investigate how parents and their 3-year-old children use one type of mobile digital…

Purpose: Few caregiver-implemented naturalistic language interventions (NLIs) are available for Spanish-speaking Latinos who have young children under 3 years with language delays, and there is a scarcity of studies that provide information about intervention development or social validity of interventions for this group. This study introduces…

Purpose: Few caregiver-implemented naturalistic language interventions (NLIs) are available for Spanish-speaking Latinos who have young children under 3 years with language delays, and there is a scarcity of studies that provide information about intervention development or social validity of interventions for this group. This study introduces…

The observation that children's activity level (AL) differs between novel and familiar situations is well established. What influences individual differences in how AL is different across these situations is less well understood. Drawing on animal literature, which links rats' AL when 1st placed in a novel setting with novelty seeking phenotypes,…

Parent- and lab-based observer ratings were employed to examine genetic and environmental influences on continuity and change in inhibitory control (IC) in over 300 twin-pairs assessed longitudinally at 2 and 3 years of age. Genetic influences accounted for approximately 60% of the variance in parent-rated IC at both ages. Although many of the…

Children are able to distinguish between regular events that can occur in everyday reality and magical events that are ordinarily impossible. How do children respond to a person who brings about magical as compared with ordinary outcomes? In two studies, we tested children's acceptance of informants' claims when the informants had produced either…

In two experiments, 2.5-year-old children spontaneously used geometric information from 2D maps to locate objects in a 3D surface layout, without instruction or feedback. Children related maps to their corresponding layouts even though the maps differed from the layouts in size, mobility, orientation, dimensionality, and perspective, and even when…

Children ages 18 and 24 months were assessed for the ability to understand and learn from an adult's nonverbal expression of agreement and disagreement with a speaker's claims. In one type of communicative exchange, a speaker made 2 different claims about the identity or location of an object. The hearer nodded her head in agreement with one claim…

The current study examined the role of increased attentional load in 24 month-old children's multistep problem-solving behavior. Children solved an object-based nonspatial working-memory search task, to which a motor component of varying difficulty was added. Significant disruptions in search performance were observed with the introduction of the…

The first eight years of life, beginning before birth and continuing through third grade, are a critical developmental period that sets the stage for future success. Research over the past 15 years has demonstrated the importance of high-quality care and education throughout the prenatal-through-third-grade (P-3) continuum, including prenatal and…

The effects of high- versus low-quality child care during 2 developmental periods (infant-toddlerhood and preschool) were examined using data from the National Institute of Child Health and Human Development Study of Early Child Care. Propensity score matching was used to account for differences in families who used different combinations of child…

A child's move from early intervention (EI) to special education preschool is considered to be a critical transition point for both the child and family. Family concerns during this process are heightened by changes in service delivery systems. Although much has been written about the transition from EI services, little is known about the parents'…

This research brief outlines the characteristics of the current workforce serving children ages 3-5 years, and begins the discussion of the needs of the field to implement universal preschool in Massachusetts. Specifically, this brief addresses two questions about the workforce: (1) What are the characteristics, including educational…

Ratings of early intervention services by 91 Massachusetts and New Hampshire mothers and fathers of young children with disabilities indicated the services' high level of helpfulness. Mothers and fathers differed in their ratings, and the weighting of perceived benefits varied by child and family characteristics. (Author/JDD)