Item response theory (IRT) is currently the dominant methodological paradigm in educational and psychological measurement. IRT models are based on assumptions about the relationship between latent traits and observed responses, so the accuracy of the methodology depends heavily on the reasonableness of these assumptions. This dissertation consists…

The overrepresentation of English Language Learners (ELL) in special education in the United States has been an ongoing concern for researchers and educators for many years (Dunn, 1968). Despite these concerns, there continues to be limited research in the areas of the assessment and classification practices of school psychologists when working…

Across the country, school districts are increasingly seeking out privately contracted psychologists to conduct psychological evaluations. As such, it is increasingly important that psychological reports adhere to best practices and are written to ensure comprehension by both parents and teachers. This study explored the potential differences…