Critically appraised topics.

This article describes the critically appraised topic (CAT) as a means to disseminate evidence from research literature to rehabilitation professionals. A CAT is a standardized, one-page summary of research evidence organized around a clinical question. A CAT includes a clinical bottom line that reflects synthesis of a research article and clinical application of the results. The synthesis includes a critique of the internal, external, and statistical validity of the research. The process of writing CATs has been used in the preparation of evidence-based practitioners. Commonly used websites for preparation and posting of CATs are included as well as an example of a CAT on the topic of cerebral palsy.