15. Education level, scientific degree
16. For those without primary education, are they literate?
For those who don't have a general elementary education: are you literate?
For those who don't have an elementary education, that is to say for those people for whom in the 21st question "01" identification code for the "No elementary education" prompt was written, the interviewer asks if the person is literate.
Literate are considered to be those people who can read and understand what they have read in some language. Those who can read and write only their names and numbers, as well as people who can only read but not write, are considered. For this question, if the answer is "yes" identification code "1" is written, in case of no. "2".