National- and state-level education policies are evolving to address teacher shortages that are pervasive across the United States and are particularly problematic in rural special education. In this article, we describe a policy we call "endorsement by exam" in which teachers certified in one subject area can become certified in other…

Many states have responded to teacher shortages by granting certification to individuals traditionally prepared out-of-state; now, out-of-state prepared teachers comprise a sizable percentage of the teacher workforce in many states. We know little about these teachers, and therefore, in the present study, we estimate the effectiveness of…