This invited special issue of "Early Education and Development" presents research related to the Early Development Instrument (EDI; Janus & Offord, 2007), a community tool to assess children's school readiness at a population level. In this editorial introduction, we first sketch out recent trends in school readiness research that call for a…

This article is a commentary for the special issue on the Early Development Instrument (EDI), a community tool to assess children's school readiness and developmental outcomes at a group level. The EDI is administered by kindergarten teachers, who assess their kindergarten students on 5 developmental domains: physical health and well-being, social…

The present study investigates whether the Early Development Instrument (Offord & Janus, 1999) measures school readiness similarly across different groups of children. We employ ordinal logistic regression to investigate differential item functioning, a method of examining measurement bias. For 40,000 children, our analysis compares groups…

Reviews papers in this special issue. Proposes additional papers on student teachers' lack of expertise in early childhood education; the role of early childhood education professionals in working with schools; early childhood education programs that have succeeded under difficult conditions; and articulation of links between early childhood and…

Considers the relationship between early childhood education and the public schools, including the "developmental" versus "academic" debate, the role of kindergarten, and the influence of developmental psychology on early childhood education. Maintains that a sense of separateness from public schools is a detriment for those involved in early…

Describes a partnership between the Erikson Institute and four Chicago public schools that was intended to enhance the effectiveness of urban education of low-income prekindergartners through third graders by means of classes that reflected the principles of developmentally appropriate practice. Discusses results of the project and the…

Discusses five major issues raised by the papers in this special issue. Also considers curriculum and conceptual issues not dealt with in the issue. Describes the need for a combination of education and care, or "educare," in early childhood programs. (BG)

Describes the effects of one community's concept of readiness for school on children in a kindergarten class. Of particular interest was the effect on children's understanding of their roles as students. The concept of readiness provided the framework for instructional activities and helped parents understand their children's roles as students.…

Reports results of a study of Ohio elementary school principals' perceptions of barriers to the establishment of preschool programs in the public school setting. Barriers most frequently cited were limitations of school facilities and lack of school district and federal financial support. (BG)

Estimates costs of (1) full public funding of part-time and full-time programs for children under five who live in poverty; and (2) public and private funding for full-time programs for children under five who are not poor. (LB)

Investigated factors that played a role in mediating the effects of the government-funded Child-Parent Center preschool program in Chicago. Results indicated that preschool influenced later achievement and retention indirectly rather than directly. A social context view of the transmission of preschool effects was supported. (LB)