Lab director Kirby Deater-Deckard and his colleagues have just published a paper in a special issue of the journal Developmental Science. In this longitudinal study, the international team examined three years of data (ages 13-15) from six low- and middle-income countries in the ongoing “PAC” international project. There were wide differences between adolescents’ exposures to household chaos (e.g., noise, crowding, lack of routines) and neighborhood dangers (e.g., gangs, violence). The higher the exposure, the higher the levels of adolescents’ adjustment problems such as depressive symptoms, delinquency, and school problems. These effects were explained in part by increases in harsh parenting. The effects were very consistent across the countries studied, even though there are large cultural differences.