The Association for the Advancement of Computing in Education (AACE) is an international, non-profit educational organization. The Association's purpose is to advance the knowledge, theory, and quality of teaching and learning at all levels with information technology. The "EdMedia + Innovate Learning" conference took place in New York,…

Computerized adaptive testing (CAT) is a mode of testing which enables more efficient and accurate recovery of one or more latent traits. Traditionally, CAT is built upon Item Response Theory (IRT) models that assume unidimensionality. However, the problem of how to build CAT upon latent class models (LCM) has not been investigated until recently,…

Assessment has long been at the center of education policy debates, and for good reason. The goal of schooling is to maximize student learning, and assessments provide a picture of what students know and are able to do. Assessments also have a strong influence on what goes on in classrooms. The United States is now poised to make the most dramatic…