Opening the black box of poststroke rehabilitation: Stroke rehabilitation patients, processes, and outcomes

This article introduces the journal's supplement devoted to the methods and findings of the 7-site Post-Stroke Rellabilitation Outcomes Project (PSROP), a Study designed to provide a very granular in-depth understanding of stroke rehabilitation practice and how practice is related to outcomes. The article summarizes current knowledge about the effectiveness of post-stroke rehabilitation, outlines where the PSROP fits into the broader traditions of stroke rehabilitation Outcomes research. underscores the study's methodologic innovations, and summarizes the scope of the articles that follow.