Effective evidence-based action requires getting the right data into the right hands at the right time to help make decisions. The Data Quality Campaign (2011) has provided suggestions to state education agencies for effectively using data within state longitudinal data systems. One suggestion is to identify "the variety of ways available…

This report is the result of a year-long effort by the National Council on Disability (NCD) to identify valid federal data and to describe the status of the U.S. population of Americans with disabilities. During the past 30 years, advocates, policymakers, and a variety of public and private organizations have undertaken significant efforts to…