Research Findings: This study explores the inter-rater reliability of WaKIDS, Washington State's kindergarten entry assessment (KEA). Specifically, we analyze (1) the extent to which teachers' assessments are in agreement with a master code, (2) how often inaccurate assessment decisions lead to misidentification of school readiness, and (3)…

This article examines a government attempt to impose testing of 4-year-olds as a baseline against which to "hold primary schools accountable" for children's subsequent progress. It examines the various forms of baseline testing in this experiment and analyses the misleading claims made for the "predictive validity" of baseline…

This study extends recent findings of a relationship between the relative age of students among their peers and their probability of disability classification. Using three nationally representative surveys spanning 1988-2004 and grades K-10, we find that an additional month of relative age decreases the likelihood of receiving special education…