1Sharon Lynn Kagan, EdD, 2Kristie Kauerz, EdD, 1Hanna Junus, MA
1Teachers College, Columbia University; 2University of Colorado, Denver, USA
March 2022, Rev. ed.
Edward Melhuish, PhD, Jacqueline Barnes, PhD
Department of Education, University of Oxford, United Kingdom
June 2021, Rev. ed.
Lawrence J. Schweinhart, PhD
High/Scope Educational Research Foundation, USA
December 2012, Rev. ed.
Paul Leseman, PhD
Utrecht University, Netherlands
Jane Bertrand, M.Ed.
Margaret and Wallace McCain Family Foundation, Canada