The overarching objective of LEVANTE is to identify how individual variability, group heterogeneity, and contextual variability influence children’s learning and development. By including data collection of common measures on these different areas longitudinally and at a global level, LEVANTE will help researchers, educators, and policymakers understand child development within individuals, within groups, and across contexts, thus improving future learning outcomes for diverse groups of children worldwide. The focus of the Jacobs Foundation is fostering scientific excellence and building a strong network of internationally active researchers in the field of child and youth development with a strong focus on variability of learning and to foster long-term collaboration with other researchers and the Jacobs Foundation.