For decades, policy experts’ and practitioner consensus has been growing about the crucial role quality data plays in informing policy making. This has led to investment and projects to increase quality data availability. But progress has been slow, as reflected by slow improvement in country...

Despite significant recent advances in research on people with disabilities in many developed countries, little is known about their counterparts living in the developing world. With the goal of helping to improve the state of knowledge on disability, the United Nations commissioned the...