The Growth Model Pilot Program (GMPP) was introduced as a response to criticism of the reliance of No Child Left Behind on status-based indicators. Although incorporating a growth component appears to be a step in the right direction, it adds a level of complexity that brings to the fore new concerns. Three of the four papers in this special issue…

States participating in the Growth Model Pilot Program reference individual student growth against "proficiency" cut scores that conform with the original No Child Left Behind Act (NCLB). Although achievement results from conventional NCLB models are also cut-score dependent, the functional relationships between cut-score location and…

A key intent of the NCLB growth pilot is to reward low-status schools who are closing the gap to proficiency. In this article, we demonstrate that the capability of proposed models to identify those schools depends on how the growth model is incorporated into accountability decisions. Six pilot-approved growth models were applied to vertically…

An analytic framework is presented for examining the properties and objectives of assessments and scoring systems piloted in a number of state and district testing programs. The article explores the application of this framework, which considers the cognitive components of competence described in studies of expertise, to the analysis of science…