Comparative education Education Mathematical ability Mathematics Study and teaching (Secondary) Educational sociology Research Social aspects Aims and objectives College students Cross-cultural studies Education and state Education, Higher Educational equalization Educational foundations Educational research Educational surveys Engineering -- Study and teaching (Higher) -- Social aspects Engineering--Study and teaching (Higher)--Social aspects--Congresses Genetic psychology International education Prediction of occupational success Prediction of scholastic success Science -- Study and teaching (Higher) -- Social aspects Science--Study and teaching (Higher)--Social aspects--Congresses Social conditions Social mobility Students' socio-economic status Students, Rating of Teachers, Training of