Respondents' education is measured by five levels of elementary school or lower, middle school, high school, vocational school, and college or higher.
The difference becomes negligible for those who finished vocational school or two-year college, and somewhat narrow for those who completed high school.
The paper explains how the book was a pilot project carried out with 300,000 elementary and vocational school students aged 8-15.
The baseline of comparison is with the category of those who finish high school or vocational school.
In addition, the directive puts all post-secondary education diplomas on the same footing, be they from a higher education institution or from a vocational school.
The vocational school continued to operate and offer courses in tailoring, printing, and auto mechanics until 1928.
The predecessor of the school, a women's vocational school, was founded 1923.
In 1969, the school became a vocational school.
