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Diploma Programme assessment


The IB uses about 5,000 examiners worldwide. They ensure that student work is assessed fairly and consistently.

  • Many IB examiners are experienced Diploma Programme teachers.
  • Examiners receive detailed instructions on how to mark the work sent to them.
  • Examiners send a sample of their marking to a more senior examiner for checking.


Each subject has a group of senior examiners who prepare examination questions, set the standard for marking and determine the marks needed for the award of each subject grade.

There is a chief examiner for each subject, usually an academic from higher education, with international authority in their field.