Imprinting and the evolution of evaluation: A descriptive account of social impact evaluation methodological practice

Abstract

This study investigates the evolution of evaluation approaches within the charitable sector, emphasising the proliferation of options throughout waves of evaluation diffusion. We draw on imprinting theory to describe the persistence of specific practices despite the emergence of alternatives. The research aims to examine the imprinted values and practices of earlier evaluation waves on the current practice of evaluation by documenting the current methodological practice in a large sample of evaluation reports. The study illuminates the enduring impact of theory-driven evaluation, introduced in the 1980s, on current practices. However, it also reveals how this approach has evolved over subsequent evaluation waves, acquiring divergent characteristics. This imprinting is not only due to effectiveness but also due to normative pressures, which prioritise conformity with norms over practical utility. The study highlights the potential consequences of this imprinting, including management-focused evaluations and mission drift. We conclude by offering practical options to address tensions within the field and call for further research to better understand the nuances of decision-making in evaluation approaches.