Plooij, Frans

Born in 1944, Dr. Hetty van de Rijt-Plooij studied Educational Psychology at the University of Nijmegen, the Netherlands. She obtained het Ph.D. in Physical Anthropology at the University of Cambridge, England. Together with her husband Dr. Frans Plooij she studied infant development of human babies in their home environment through direct observations, filming, and in-depth interviews with their parents. Dr. Hetty van de Rijt designed a parental support and education program called Leaping hurdles, based on The Wonder Weeks and published a scientific evaluation study to report the results of