For example, practitioners working in local and county health departments must deal with the communities they serve on a daily basis. They are more aware of the interactions between programs they implement and the impact these programs make on the community than those at state and national levels. Having to work with limited budgets, in most instances, such practitioners need to know if these limited resources are being used appropriately so nothing goes to waste. This is commonly referred to as working in the trenches.

Conducting this kind of research helps Public Health Practitioners to really look at the impact of a particular strategy or intervention. In fact, if each Public Health Practitioner were to do this regularly and share the findings with one another, Public Health would be very well off.