The passing of the Education for All Handicapped Children Act---later renamed the Individuals With Disabilities Education Act---mandated that schools and districts ensure that all available education services were comparable between students with disabilities and general education students. This mandate led to students with disabilities and…

Some form of a short interrupted time series (ITS) is often used to evaluate state and national programs. An ITS design with a single treatment group assumes that the pretest functional form can be validly estimated and extrapolated into the postintervention period where it provides a valid counterfactual. This assumption is problematic. Ambiguous…

In this keynote address presented at the Mid-western Educational Research Association Annual Meeting in October, 2004, the author discusses the increasing interest of federal policy-makers in scientifically-based research. A comparison between education and other disciplines is offered, and a proposal for increased rigor in educational research is…