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Direct linkGuhn, Martin; Janus, Magdalena; Hertzman, Clyde – Early Education and Development, 2007
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…
Descriptors: School Readiness, Item Analysis, Group Testing, Journal Articles
Guhn, Martin; Gadermann, Anne; Zumbo, Bruno D. – Early Education and Development, 2007
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…
Descriptors: School Readiness, Kindergarten, Child Development, Program Validation
