The International Baccalaureate® (IB) Diploma Programme (DP) uses both internally and externally assessed components to assess student performance. For most courses, written examinations at the end of the DP form the basis of the assessment. This is because these examinations have high levels of objectivity and reliability.
Externally assessed coursework, completed by students over an extended period under authenticated teacher supervision, forms part of the assessment for several programme areas, including the theory of knowledge (TOK) essay and the extended essay (EE).
In most subjects, students also complete in-school assessment tasks. These are either externally assessed or marked by teachers and then moderated by the IB.
In the DP, students receive grades ranging from 7 to 1, with 7 being the highest. Students receive a grade for each DP course attempted. A student’s final diploma result score is made up of the combined scores for each subject. The diploma is awarded to students who gain at least 24 points, subject to certain minimum levels of performance including successful completion of the three essential elements of the DP core.
The theory of knowledge (TOK) and extended essay (EE) components are awarded individual grades and, collectively, can contribute up to 3 additional points towards the overall diploma score.
Creativity, Activity, Service (CAS) - the remaining element in the DP core- does not contribute to the points total but authenticated participation is a requirement for the award of the diploma.