R. Elkan et al., Evidence-based practice and health visiting: the need for theoretical underpinnings for evaluation, J ADV NURS, 31(6), 2000, pp. 1316-1323
In this paper we argue that evidence-based practice, which is being introdu
ced throughout the British National Health Service to make decisions about
the allocation of limited resources, provides a welcome opportunity for hea
lth visitors to demonstrate their efficacy, skills and professionalism. How
ever, the paper argues that to view health visiting as evidence-based is no
t to reduce health visiting merely to a technology through which scientific
solutions are applied to social problems. Rather, health visiting needs to
be viewed as a political movement, based on a particular model of society,
which shapes the goals which health visitors pursue and influences the str
ategies they adopt to achieve their goals. The paper describes various mode
ls of health visiting as a way of showing how the goals of health visiting
are always framed within a particular set of assumptions and causal explana
tions. The paper then turns to look at the issue of evaluating health visit
ing services. It is argued that evaluation should properly take account of
the models which shape health visitors' goals and intervention strategies,
and in turn, health visitors need to be explicit about the theoretical fram
eworks underpinning their interventions. Finally, it is argued that health
visitors' knowledge and understanding of a range of models of society enabl
es them to move between the various models to choose the most appropriate a
nd effective means of intervention. Hence it is concluded that the emphasis
on evidence-based practice provides health visitors with a valuable opport
unity to show that their unique, professional skills and understanding are
the preconditions for effective intervention.