(i) No formal education
Refers to persons who have never attended school in any of the educational institutions that provide formal education.
(ii) Primary
Refers to those whose highest level of education attained is from Standard 1 to 6 or equivalent.
(iii) Secondary
Refers to those whose highest level of education attained is from Form 1 to 5 (including remove class), General Certificate of Education (GCE) O Level or equivalent. This includes basic skill programmes in specific trades and technical skills institutions whereby the training period is at least six months, such as GIATMARA programmes.
(iv) Tertiary
Refers to those whose highest level of education is above Form 5.