Bücher der Reihe Tilburg Studies on Health Care

GENERAL The study of the prevalence of mental retardation presented in this book is especially concerned with assessing the prevalence within a number of age groups in the city of Amsterdam, i.e. How many mentally retarded are there in Amsterdam and what degree of mental retardation do they show?

In the present report the results are discussed of a psychological testing program which was apart of the preparation for a multi-disciplinary, national investigation into the need for guidance of the mentally de ficient.