How are the education segments defined?
The three levels in the education section of the segment builder are based on the international standard classification of education (ISCED) levels from low - no completed high school education, through medium - completed high school education, to high - completed a university degree.)
For example in the US, the levels are mapped as follows:
Low education: I don't have a formal education / I have some primary or secondary education
Medium education: I have completed high school or obtained an equivalent degree
High education: I have completed university or obtained an equivalent degree / I have completed a postgraduate degree (masters or doctorate)
The exact question options are based on the location where the survey is running and adjusted per that related education system.