Broad-based empirical outcomes assessment is an increasingly evident part of governmental services and this trend is particularly apparent in education. The clearest manifestation of this trend in education has been the advent of high-stakes broad-based testing and accountability programs in K-12 education. Although this assessment regime has not yet been used to assess the efficacy of teacher preparation programs, the data management capacity and statistical technology is now emerging to make this possible. This article presents data from the 1st year of a pilot study examining the methodological and practical issues involved in implementing a value-added assessment of teacher preparation based on a massive multivariate longitudinal database. The pilot data are discussed in relation to the literature pertaining to value-added assessments in K-12 education. Selected research needs and practical concerns related to the use of value-added models for the assessment of teacher preparation are discussed.