As many reviews of results-based performance systems have noted, a weak evaluative culture in an organization undermines attempts at building an effective evaluation and/or results management regime. This article sets out what constitutes a strong evaluative culture where information on performance results is deliberately sought in order to learn how to better manage and deliver programs and services. Such an organization values empirical evidence on the results it is seeking to achieve. The article outlines and discusses practical actions that an organization can take to build and support an evaluative culture. (Contains 1 figure and 6 tables.)