Effect of Minimum Cell Sizes and Confidence Interval Sizes for Special Education Subgroups on School-Level AYP Determinations. Synthesis Report 61 - National Center on Educational Outcomes, Minneapolis, MN.; Council of Chief State School Officers, Washington, DC.; National Association of State Directors of Special Education, Washington, DC.; Simpson, Mary Ann; Gong, Brian; Marion, Scott (National Center on Educational Outcomes, University of Minnesota, 2006)