Stephen Kisembe Kiirya is a consultant with the World Bank and a senior research fellow with the Development Research and Social Policy Analysis Centre in Uganda, focusing on population health. He specializes in social and behavioral research, as well as design and evaluation of HIV and sexual and reproductive health programs for vulnerable communities. He has published several papers and abstracts on these topics and also has reviewed manuscripts submitted to related scholarly publications. He is a member of the African Network for Care of Children Affected by AIDS, the International AIDS Society, the International Association for Cross-Cultural Psychology, and other professional associations. He holds a PhD in psychology from the University of Pretoria.