Accurate, reliable, and scalable measurement of classroom quality represent a critical tool for ensuring that young children benefit from early learning programs. The Early Childhood Classroom Observation (ECCO) study was designed to better understand how video recordings can support high-quality measurement of pre-kindergarten (pre-K) classrooms,…

The CLASS-PreK instrument is widely used to evaluate early childhood classrooms, but how classrooms using Montessori, the world's most common alternative education system, fare on CLASS is understudied. Because CLASS focuses largely on teacher-child interactions as the situs of learning, but in Montessori theory, child-environment interactions are…

Research Findings: The Classroom Assessment Scoring System Toddler (CLASS-T) is one of the most commonly used measures to assess the quality of teacher-child interactions in toddler classrooms. Despite widespread use of the CLASS-T, few studies have examined the factor structure of the CLASS-T for use in Early Head Start (EHS) and subsidized child…

The current study examined the contexts in which a preschool teacher professional development intervention was more versus less effective in improving student outcomes. We used a fixed intercept, random coefficient (FIRC) modeling approach to explore the contextual characteristics inside and outside school walls that predicted differential…

Research Findings: Preschoolers' vocabulary skills and inhibitory control have been demonstrated critical for later school success; however, the ways in which the individual classroom experiences dynamically interchange with these skills is still unclear. In this paper, we examine the role of children's individual engagement with teachers, peers,…

The "Pre-K Classroom Assessment Scoring System" (CLASS) is commonly used to measure three domains of teacher-child interactional quality in preschool classrooms (Emotional Support, Classroom Organization, and Instructional Support). However, there is considerable debate regarding the validity of its three-domain factor structure and the…

Research Findings: In recent years, several initiatives have been put into place both federally and state-wide to expand access to high-quality early education programs. At the center of these efforts are the tools that measure program or classroom quality. The present study compares the psychometrics of two such tools used in Michigan, the…

Research Findings: Given the variable nature of early childhood settings, practitioners and researchers need better guidance on what conditions influence observations conducted within early childhood settings (National Research Council, 2008). Using 230 observations from 23 three- and four-year-old children, we conducted a Generalizability study…

"Research Findings": Early childhood workers (ECW's) play a pivotal role in shaping children's emotional competence. This study examined the efficacy of Tuning in to Kids for Kindergarten Teachers (TIK-KT) used with CLASS observations to improve ECW's emotion socialization, kindergarten emotional climate and children's functioning. Five…

Pre-kindergarten (Pre-K) programs typically improve early academic skills, but those gains too often disappear after children transition to elementary school. At least three hypotheses explain this "fade-out" of Pre-K effects: Pre-K does not focus on the "trifecta skills" that uniquely support subsequent learning and…

Research Findings: This study explores how Chinese preschool teachers' enactment of Concept Development (CD) strategies, as measured by the Classroom Assessment Scoring System (CLASS), might effectively elicit children's higher-order thinking during whole-group science teaching. Participants included 25 Chinese preschool teachers and 800 young…

This study examines the classroom environment for students with disabilities in five pre-primary classrooms in Nairobi, Kenya. Creating an analytical framework based on CLASS, a classroom observation tool, we looked at the types of interactions children with disabilities had with their teachers and peers, using classroom observations and teacher…

Research Findings: A total of 54 videotaped mathematics activity observations drawn from 27 different pre-kindergarten classrooms in an urban public schools system in the U.S. were coded using 2 observational measures: (1) a general measure, the Classroom Assessment Scoring System (CLASS); and (2) a math-specific measure, the High Impact…

Research Findings: This longitudinal study examined how teacher-child interaction quality related to growth in children's approaches to learning (ATL), measured by Competence Motivation Learning Strategies, and Attention and Persistence, in a stratified random sample of 607 Chinese children. Data on classroom teacher-child interaction quality…

Research Findings: This study examined whether teacher-child interaction quality varied as a function of type of activity in toddler classrooms in four European countries (Finland, Netherlands, Poland, and Portugal). It also investigated whether specific activity settings, namely levels of adult involvement, use of whole group, and children's…