Crystal Day-Hess is a Research Assistant Professor and Assistant Director of the Marsico Institute for Early Learning at the University of Denver. She serves as a Research Associate with the DREME Network, focusing specifically on the Math+ and Preschool Through Elementary School Coherence projects. She has extensive experience coordinating and conducting research and evaluation in the early childhood and education-related fields. She is a co-PI on an IES Goal 3 study evaluating the efficacy of the pre-K interdisciplinary curriculum, Connect4Learning (C4L), and was the project director on a NSF-funded development study of C4L. She has served as Project Director for multiple federally- and foundation-funded projects funded by NSF, IES, Office of Early Learning, ACF Office of Head Start, and foundation-funded grants. Crystal holds a PhD in Experimental Psychology from the University of Louisville.