An essential element of IB assessment is that standards are the same worldwide. The students’ performance is measured according to established standards and criteria that are consistent from place to place and year to year. The Diploma Programme’s grading system is criterion referenced: each student’s performance is measured against well-defined levels of achievement consistent from one examination session to the next. Grades reflect attainment of

knowledge and skills relative to set standards that are applied equally to all schools. Top grades are not, for example, awarded to a certain percentage of students.

Classroom teachers and IB examiners work in partnership to ensure that students have ample opportunity to demonstrate what they have learned. Responsibility for all academic judgements about the quality of students’ work rests with examiners worldwide led by chief examiners with international authority in their fields.

There are two types of assessment in a DP classroom: external assessments and internal assessments:

  • External assessments are the assessments that are graded by an IB Examiner, not the classroom teacher.
  • Internal assessments (IAs) are the assessments students complete over a period of time in (or out) of class and the classroom teacher marks these assessments. Once the teacher has marked the assessments, the IBO requests some of the students’ work for moderation.

Preparing students for the external assessment should start from the beginning of the course by making explicit reference to the timing, length, and style of external assessment when introducing the course.

 The IB diploma subjects are examined by a combination of continuous coursework (Internal Assessments) and written examinations at the end of the two-year programme. Internally assessed work usually accounts for a minimum 20% of the final grade in a subject. The modes of Internal Assessments are used to evaluate both the content and the process of academic achievement and include portfolios, essays, practical work, oral presentations and oral commentaries. The written examinations are taken in May of IB DP year 2. 

Each examined subject is graded on a scale of 1 (minimum) to 7 (maximum). In order to be awarded the diploma, a student must meet defined standards and conditions, including a maximum total of 24 points (based on the notion that a grade 4 represents passing grade) and the satisfactory completion of the three diploma requirements: TOK, EE and CAS activities. EE/ToK Matrix: here 

Excellent performance in all of the six subjects result in a total of 42 points (7 points for each subject). TOK and EE contribute to the overall score through a matrix system which awards up to 3 points based on the student’s combined performance. Thus, the maximum diploma point score is 45 points.