On the basis of her research, Schmidt-Kolmer pleaded for the systematic creation and expansion of day nurseries. Under her leadership, between 1971 and 1973 six thousand children in daycare centres were closely monitored during their first three years. Motor skills, game activity, language and social skills were observed and measured using test procedures. They showed that the more time parents spend with their children, the better the children develop. Especially during the first two years, the overall mental development of the child depends on joint activity with the parents.B. Arnim: "Ziele und Aufgaben der Kinderkrippen in der DDR unter besonderer Berücksichtigung der wissenschaftlichen Beiträge der Medizinerin und Sozialhygienikerin Eva Schmidt-Kolmer". Berlin 1998 (degree dissertation)
