Note: The following remarks were delivered by Center for Assessment Executive Director Scott Marion at the Center’s 20th Anniversary Dinner on Sept. 26, 2018.

I’m thrilled to be celebrating the 20^th anniversary of the National Center for the Improvement of Educational Assessment with so many people who have been so important to the Center and its success over the years. Isaac Newton once quipped, “If I have seen further than others, it is by standing on the shoulders of giants.” Those of us working at the Center feel this way all the time.  

This is the first in a series of posts highlighting key pieces of work from the Center’s first twenty years.  Each post will feature a document, set of tools, or body of work in areas such as large-scale assessment, accountability systems, growth, educator evaluation, learning progressions, and assessment systems. In keeping with the Center’s 20^th anniversary theme, Leveraging the Lessons of the Past, our goal is to apply the lessons learned from this past work to help us improve assessment and accountability practices for the future.