From 1935 to 1940 he lectured at the University of Rochester and wrote The Clinical Treatment of the Problem Child (1939), based on his experience in working with troubled children.
Dari tahun 1935-1940 ia mengajar di University of Rochester dan menulis The Clinical Treatment of the Problem Child (1938), yang berdasarkan pengalamannya saat bekerja dengan anak-anak bermasalah.