We use data from a randomized controlled trial of a middle school science intervention to explore the causal mechanisms by which the intervention produced previously documented gains in student achievement. Our study finds that implementation fidelity, operationalized as a measure of the frequency of implementation of the cognitive science…

A participatory model in evaluation is presented as an extension of the stakeholder-based model focusing on the increased participation of primary users. Twenty-six empirical studies that support an organizational learning justification of the model are reviewed and classified. Requirements for participatory evaluation are discussed. (SLD)

Applications of social judgment theory are discussed with respect to policy formation and decisionmaking in educational contexts. Interactive computer technology is described, which can execute social judgment analyses, provide cognitive feedback to the policymaker on selected policy parameters, compare the policies of several policymakers, and…