The purpose of this study was to empirically examine the dimensionality of language ability for young children (4-8 years) from prekindergarten to third grade (n = 915), theorizing that measures of vocabulary and grammar ability will represent a unitary trait across these ages, and to determine whether discourse skills represent an additional…

Research Findings: As policymakers expand access to preschool, the sociodemographic composition of preschool classrooms will become increasingly important. These efforts may create programs that increase the concentration of children from low-income families or, alternatively, foster the creation of socioeconomically diverse preschool classrooms.…

Research Findings: It is widely acknowledged that consistent, high-quality teacher-student interactions promote optimal developmental outcomes for children. Previous research on the quality of teacher-student interactions provides empirical support for this premise. Little research has been conducted on the consistency of teacher-student…