Ongoing or recently completed across the United States are a series of lawsuits via which teacher plaintiffs are contesting how they are being evaluated using value-added models (VAMs) as part of states'/districts' teacher accountability systems. To investigate the empirical and pragmatic matters addressed in court, researchers conducted a case…

Despite the concerns regarding value-added models (VAMs), advocates hold strong to VAMs' theoretical strengths and potentials, while adopting a set of agreed-upon albeit "heroic" set of assumptions, without research in support. These assumptions transcend promotional, policy, media, and research-based pieces, but they have never been…

Currently, a significant number of states are in the process of implementing a high-stakes teacher evaluation (HSTE) system. In many ways, Louisiana's teacher evaluation system, "Compass," is typical of the models that many states have adopted. This article reports the experiences of 37 elementary teachers from five districts across…