Although nonprofit organizations are expected to engage in continuous evaluation, its effectiveness is hampered by limited resources and competing and untested instruments. This paper makes the case for the creation and use of more robust measures in nonprofit evaluation. Specifically, we argue for the involvement of nonprofits in the development of reliable and valid instruments that can be used to benchmark nonprofit organizations against one another and for funders and government to support these efforts through their investment in nonprofit measurement. We cite a particular measure, The Nonprofit Capacities Instrument, as an exemplar.