Educators are using growth models for a variety of accountability, instructional planning, and evaluation purposes in U.S. schools. This white paper, with a focus on special education populations, provides state and local education personnel with an overview of issues to consider with growth models, a look at models currently in use, and a…

States are in various stages of reforming how they evaluate their educators, all striving for a new system that can assess a range of abilities and practices over long periods of time and capture the full nature of an educator's performance. The strongest systems look at teaching in a more comprehensive way than evaluations have done in the past,…