Her research and publications have addressed children's social and emotional interactions and relationships with multiple caregivers in different cultural and socioeconomic contexts, cultural variation in caregiver sensitivity to fussing and crying, cross-cultural differences in toddler peer interactions, parent-child conflicts and caregiving transitions in early childhood among Central Africans, cultural practices of infant and child feeding and the social and emotional contexts of feeding interactions, parent-infant interactions among African American families, and the role of socioeconomic status and ethnicity in early infant care in the United States.