Elledge, A., Le Floch, K. C., Taylor, J., & Anderson, L. (2009). State and local implementation of the No Child Left Behind Act: Volume V - Implementation of the 1 percent rule and 1 percent interim policy options (“A Report from the Study of State Implementation of Accountability and Teacher Quality Under No Child Left Behind (SSI-NCLB), U.S. Department of Education”). U. S. Department of Education. http://www2.ed.gov/rschstat/eval/disadv/nclb-disab/nclb-disab-highlights.pdf