One of the problems with adopting value-added analysis models is that there is still relatively little published work on the topic. Operation Public Education at the The Center for Greater Philadelphia at the University of Pennsylvania is one source that pulls both technical and press accounts together with a description of value-added models. Vendors are also improving the level of discussion. Harcourt has its own technical report on the requirements and benefits of value-added analysis.
The VARC team intends to add to this discussion be providing both more general models for value-added analysis as well as models that address specific characteristics of various accountability systems (multiple vendors, content differences on tests, mid-year testing, etc.) The first of these publications can be found in the appendix of our Tri-State Longitudinal Data System grant proposal.
Chris
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