Closing the chasm between research and practice: evidence of and for change.

The usual remedy suggested for bridging the science-to-practice gap is to improve the efficiency of disseminating the evidence-based practices to practitioners. This reflection on the gap takes the position that it is the relevance and fit of the evidence with the majority of practices that limit its applicability and application in health promotion and related behavioural, community and population-level interventions where variations in context, values and norms make uniform interventions inappropriate. To make the evidence more relevant and actionable to practice settings and populations will require reforms at many points in the research-to-practice pipeline. These points in the pipeline are described and remedies for them suggested.