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Amrein-Beardsley, Audrey; Close, Kevin – Educational Policy, 2021
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…
Descriptors: Value Added Models, Court Litigation, Teacher Evaluation, Reliability
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Amrein-Beardsley, Audrey; Holloway, Jessica – Educational Policy, 2019
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…
Descriptors: Value Added Models, Teacher Evaluation, Accountability, Educational Change