Because of their efficiency and ability to keep many other factors constant, twin studies have a special appeal for investigators. Just as with any teaching dataset, a "matched-sets" dataset used to illustrate a statistical model should be compelling, still relevant, and valid. Indeed, such a "model dataset" should meet the…

Sub-Saharan Africa is home to millions of HIV-affected children. These children are likely to experience multiple developmental delays. In this chapter, I present data highlighting compromised neurobehavioral, mental health, and scholastic outcomes for children affected by HIV. Furthermore, I discuss biomedical factors (e.g., disease severity and…

This case study examines solutions to infant malnutrition in Africa from an interdisciplinary perspective, identifying factors that directly or indirectly influence practices involved in feeding infants from birth to age 3 in Maradi, Niger. The study begins by providing a conceptual framework and description of the approach used in the analysis,…