1Zellman, G.,& Perlman, M.Child-care Quality Rating and Improvement Systems in 5 Pioneer States:Implementation Issues and Lessons Learned. Santa Monica, CA: RAND Corporation.2008.
2Iowa Department of Human Services. Quality Rating System [ EB/OL ].http ://www.dhs. state.ia.us/iqrs/enviro_rating/in dex. html. 2009-03-27.
3National Association for the Education of Young Children. The NAEYC Quality Rating and Improvement Systems ( QRIS) Toolkit [ R/OL].http://www.naeyc.org/policy/state/pdf/Web QRSToolkit.pdf. 2009-03-10.
4Ohio Department of Job and Family Services. Step Up To Quality [ EB/OL ]. http ://jfs. ohio. gov/cdc/SUTQ_QAA, stm. 2008-03-01.
5Colorado Qualistar Early Learning[ EB/OL ].http://www.qualistar.org.2009-03 -20.
6Tennessee Department of Human Services.Star-Quality Child Care Program Report Card For Child Care Centers[R/OL]. http ://www. state, tn. us/humanserv/adfam/star_centers, pdf. 2009-03 -20.
7Ohio Department of Job and Family Services. Step Up To Quality [ EB/OL ]. http ://jfs. ohio. gov/cdc/SUTQ_QAA, stm. 2008-03-01.
8Sylva, K., Siraj-Blatchford, I., Taggart, B., Sammons, P., Melhuish, E., Elliot, K., & Totsika, V.Capturing Quality in Early Childhood Through Environmental Rating Scales.Early Childhood Research Quarterly, 2006, (21 ).
9CarolCopple & Sue Bredekamp. Developmentally Appropriate Practice in Early ChildhoodPrograms Serving Children from Birth through Age 8 (Third Edition) [M]. Washington,DC: The Nation-al Association for the Education of the Young Children, 2009.21-22.
10OralieMcAfee & Deborah,J. Leong. Assessing and Guiding Young Children's Developmentand Learning [ M ].Boston : Allyn & Bacon, 2002.103.