Farley, D., Saven, J. L., Tindal, G., Nese, J. F. T. (2013). Analysis of growth on state tests for students with significant cognitive disabilities (Technical Report No. 1311). Eugene, OR: Behavioral Research and Teaching, University of Oregon. Alternate assessments based on alternate achievement standards are designed to measure the academic achievement of students with the most significant cognitive disabilities. Because this population has not previously been included in large-scale testing programs, these assessments present unique measurement challenges. TechRpt_1311