(1) The key stages in relation to a student are as follows—
(a) the period beginning with his or her attainment of compulsory school age and ending at the same time as the school year in which the majority of students in his or her class attain the age of 8 years;
(b) the period beginning at the same time as the school year in which the majority of students in his or her class attain the age of 8 years and ending at the same time as the school year in which the majority of students in his or her class attain the age of 10 years;
(c) the period beginning at the same time as the school year in which the majority of students in his or her class attain the age of 10 years and ending at the same time as the school year in which the majority of students in his or her class attain the age of 12 years; and
(d) the period beginning at the same time as the school year in which the majority of students in his or her class attain the age of 12 years and ending at the same time as the school year in which the majority of students in his or her class attain the age of 15 years.
(2) For each key stage in subsection (1) the Chief Education Officer shall ensure that arrangements are made for the assessment of students to ascertain what they have achieved, in relation to the attainment targets.
(3) The assessments may be made by the Ministry of Education or by a body or organisation designated or contracted to do so by the Minister.
(4) The Minister shall determine the frequency of the assessments.
(5) The Minister may publish the results of the assessments together with a commentary on the results of the assessments by the Chief Education Officer.