Paul van Geert Editor & Author

Paul van Geert is Emeritus Professor of developmental psychology at the University of Groningen, the Netherlands. He is considered a pioneer in the application of the (complex) dynamic systems approach to a broad range of developmental areas, including cognitive and early language development, second language acquisition, learning-teaching processes, and educational processes. Naomi de Ruiter is a developmental psychologist and an Assistant Professor at University College Groningen, the Netherlands. In her research, she applies a (complex) dynamic systems approach to the study of self and identity, and to classroom interactions.