‘Community-based evaluations in the UK: scientific concerns and practical constraints.’

As preventive initiatives gather momentum in the UK, the need for rigorous evaluation of effective practice becomes more urgent. However, researchers, practitioners and policy makers may have different priorities when it comes to implementing evaluations in community settings. This article considers the competing demands that may be placed on evaluators in relation to three dimensions : the service (characteristics of the intervention itself) ; the sample (people who are participating) ; and the methodology or research design. It explores compromises that may be required between scientific ideals and real-world limitations, and assesses the implications for obtaining meaningful results in evaluation research