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The National Implementation Research Network is a center of the University of North Carolina at Chapel Hill.  All NIRN materials are disseminated through the NIRN UNC website with appropriate attribution and copyright notices. NIRN materials retrieved from other websites may have incorrect attribution or copyright notices. NIRN UNC is not affiliated with other groups purveying [similar] work. 
 
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This content is licensed under Creative Commons license CC BY-NC-ND, Attribution-NonCommercial-NoDerivs. You are free to share, copy, distribute and transmit the work under the following conditions: Attribution — You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work); Noncommercial — You may not use this work for commercial purposes; No Derivative Works — You may not alter, transform, or build upon this work.  Any of the above conditions can be waived if you get permission from the copyright holder.


Some of the contents of this site were developed under a grant from the US Department of Education #H326K120004. However, those content do not necessarily represent the policy of the US Department of Education, and you should not assume endorsement by the Federal Government.