Community defined evidence is a set of practices that communities have used and found to yield positive results as determined by community consensus over time. These practices may or may not have been measured empirically but have reached a level of acceptance by the community. CDE takes a number of factors into consideration, including a population’s worldview and historical and social contexts that are culturally rooted. It is not limited to clinical treatments or interventions. CDE is a complement to to Evidence Based Practices and Treatments, which emphasize empirical testing of practices and do not often consider cultural appropriateness in their development or application.