Insights into proceeds from social investments: beyond numbers fetishism and relativism

How profitable are social investments? It is necessary for social professionals to gain and give insight into the proceeds of their work. Both clients and professionals will benefit from a results-oriented approach. Subsidising agencies and financiers will reap the fruits of such an approach as well. But how can we gather evidence on the proceeds of social investments? In this article we distinguish two mutually complementary ways of gaining evidence. The first is known as evidence-based policy and practice, mainly quantitative research on the effects of social interventions and on the causal relations between interventions and outcome. However, limitations are attached to quantitative research because of disruptive factors, a variety of side effects and the dynamics of social reality. Complementary evidence is therefore needed: practice-based evidence, based primarily on qualitative methods that provide insight into mechanisms and conditions under which effects occur. The practice-based method presumes systematically studying a series of small-scale and mindful practices in order to uncover tacit knowledge of professionals. It is exactly this combination of rigid quantitative research and flexible qualitative methods which does justice to the challenging undertaking of clarifying the proceeds from social investments.