The number of the completed grade in each of the types of schools listed in sub-question 11/a will be entered into the quads in sub-question 11/b and the qualification obtained will be underlined at sub-question 11/c. The educational attainment should be enumerated according to the prevailing educational system.

Qualifications obtained at specialized courses must not be entered. The former statement does not valid in cases of specialized courses if the respective legislation is specifying that by taking some state exams the given qualification will be equivalent with a completed secondary or higher education. To accept i.e. to enter the answer to questions 11 and 12 is possible only if all the required exams had been taken by the respondent.

11/b Class (grade) completed

The completed grade is the one which might be confirmed by a certificate. In case the respondent had visited several schools of the same type the classes completed must not be summarized but the highest grade completed should be marked. In case a person born before 1973 did not attend school or at the reference date of the census is at the first grade of the primary school "0" will be entered into the quad at inscription "general, primary" and the other quads remain empty. In each of the cases after the last completed year "0" is entered and the following quads remain blank.

Schools for mentally defective persons are treated as general (primary) schools.