2000
The National Center for Early Development and Learning and SERVE conducted a survey of readiness initiatives in all 50 states during the fall of 1999. The full article is available from the on-line journal Early Childhood Research & Practice.
Citation
Saluja, G., Scott-Little, C., & Clifford, R. M. (2000). Readiness for school: A survey of state policies and definitions. Early Childhood Research & Practice, 2(2).