Program Evaluator

Mark Hansen, Ph.D.

Senior Researcher, National Center for Research on Evaluations, Standards, & Student Testing, UCLA

Dr. Hansen's work focuses on the use of latent variable models (item response theory and cognitive diagnosis models, in particular) to support the design of assessments used in educational, psychological, and health-related research. This has included the development and evaluation of methods for estimating such models and for examining the extent to which they fit real data. Hansen is also interested in approaches for characterizing the validity and reliability of assessment-based judgments. Hansen currently serves as a senior researcher at CRESST.

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