The ability to make inferences about what one's peers know is critical for social interaction and communication. Three experiments (n = 309) examined the curse of knowledge, the tendency to be biased by one's knowledge when reasoning about others' knowledge, in children's estimates of their peers' knowledge. Four- to 7-year-olds were taught the…

This study aimed to examine the unique and joint contributions of behavioral and emotional self-regulation to key but understudied emergent literacy and early social skills, disentangling sex-differentiated paths. The participants were 231 Portuguese preschoolers (50% boys; M[subscript age] = 59.5 months; SD = 8.5) enrolled in 47 classrooms. In…

This quasi-experimental study compared children who were (or were not) exposed to a 28-week program designed to prevent aggressive behavior by teaching pro-social skills and social knowledge. Children in the experimental group increased significantly in teacher-ratings of cooperation, assertion, self-control, and total social skills, as well as in…

This report focuses on the results of the second year of this longitudinal study--the 2014-2015 Georgia's Pre-K Program Evaluation. The purpose of this evaluation study was to examine initial longitudinal outcomes related to school readiness for children and the quality of their classrooms from pre-k through kindergarten. The primary evaluation…

Differences in emotion knowledge by children's age, gender, and socioeconomic risk status, as well as associations of emotion knowledge with executive control, social competence, and early classroom adjustment, were investigated. On emotion knowledge, 4- and 5-year-olds scored higher than 3-year-olds, with girls showing this effect more strongly.…

This executive summary presents results from a study that began in 2013-2014, and involves a longitudinal design to follow a sample of 1,169 children (139 Spanish-speaking DLLs) who attended 199 randomly-selected Georgia's Pre-K classrooms. These findings focus on results from the second year of the study, which included 1,034 of these children…

In recent years, interest has increased in preschool programs that promote low-income children's early learning and development. Although research in this area has focused mostly on 4-year-olds, a growing number of 3-year-olds attend publicly funded preschool. In fact, in Head Start--a federally funded early childhood education program--the…

This report presents exploratory impact findings for 3-year-olds from the Head Start CARES demonstration, a large-scale randomized controlled trial implemented in Head Start centers for one academic year across the country. The study was designed primarily to test the effects of the enhancements on 4-year-olds, but it also provides an opportunity…

Preschool has long been viewed as a way to promote low-income children's early learning and development. Some promising classroom-based strategies have been found to enhance preschool children's social, emotional, and behavioral competencies. Most of this research has focused on 4-year-olds, even as a growing number of 3-year-olds attend Head…

The study explored the organization of mentally retarded individuals' event knowledge and the relationship between social knowledge and performance in naturally occurring events. Twenty mentally retarded adults and 20 nonretarded preschoolers were asked to sequence photographs of events depicted in familiar and novel contexts. Preschoolers were…

Research was conducted to assess young preschoolers' knowledge of emotion and to explore the relation between children's understanding of emotion and their prosocial behavior. This discussion briefly describes measures devised to investigate knowledge of emotion, and outlines findings. Also discussed are relations between knowledge of emotion and…

This study examined relations among cortisol reactivity and measures of cognitive function and social behavior in 4- to 5-year-old children (N=169) attending Head Start. Saliva samples for the assay of cortisol were collected at the beginning, middle, and end of an approximately 45-min testing session. Moderate increase in cortisol followed by…