Questions regarding the generalizability of results from educational experiments have been at the forefront of methods development over the past five years. This work has focused on methods for estimating the effect of an intervention in a well-defined inference population (e.g., Tipton, 2013; O'Muircheartaigh and Hedges, 2014); methods for…

When competence tests are administered, subjects frequently omit items. These missing responses pose a threat to correctly estimating the proficiency level. Newer model-based approaches aim to take nonignorable missing data processes into account by incorporating a latent missing propensity into the measurement model. Two assumptions are typically…

Using multimethod-multisource functional behavioral assessment (FBA), 3 students (in kindergarten, first grade, and ninth grade) with behavioral disabilities at risk for change of placement received interventions. Indirect assessments included the Functional Assessment Checklist for Teachers and Staff--Part A & B, the Student-Directed…