Computer-based assessment appears to offer the promise of radically improving both how assessments are implemented and the quality of the information they can deliver. However, as many states consider whether to embrace this new technology, serious concerns remain about the fairness of the new systems and the readiness of states (and districts and…

Reviews research literature on comparability issues in computerized adaptive testing (CAT) and synthesizes issues specific to comparability and test security. Develops a framework for evaluating comparability that contains three categories of criteria: (1) validity; (2) psychometric property/reliability; and (3) statistical assumption/test…

Presents a conceptual framework of educational diagnosis based on formative evaluation. Describes a computer-based diagnostic system that maximizes the coherence and effectiveness of obtained information by generating a structural diagnosis of the nature of student errors and a causal diagnosis related to teaching methods. Contains 64 references.…

Following a critique of so-called educational testing, this article examines three "educationally noteworthy school testing programs"--those of Portland, Oregon; Orange County, Florida; and Pittsburgh, Pennsylvania; and one noteworthy school with no standardized testing: the Prospect School in Bennington, Vermont. Derives some broad…