Institutionally, the seven-year higher school (four years of regular course and three years of advanced course) was defined as an institution of higher education, but it effectively served as an institution of both middle and higher education in one school.
七年制高等学校（尋常科4年・高等科3年）は制度的に高等教育機関と位置づけられているものの、実質的には一つの学校で中等・高等教育機関をかねていた。