Hannah Ulferts is a postdoctoral researcher at the department of Early Childhood Education at the Freie Universität Berlin. In a meta-analysis for the European Project CARE she studied the impact of quality and quantity of Early Childhood Education and Care (ECEC) on children’s language/literacy and math development. She also conducted several secondary analyses of existent longitudinal and cross-sectional studies (e.g., SOEP, BiKS) and conducted a study on reading motivation and competences of 5th graders. Currently she is involved in evaluation studies on early support programs for disadvantaged families in Germany (e.g., BRISE, AQuaFam). Her main research interests are effects of ECEC quality and quantity on children’s cognitive and socioemotional development, cumulative long-term effects of continuous support programs for disadvantage families (from children’s birth to primary school), as well as preschool teachers’ competences and professional development and quality components of early math education.