Over three-quarters of pupils in the final year of an Amsterdam trade school have been told they have to take more tests before their final grades in their school leaving exams can be established.

School inspectors were brought in after it emerged pupils had not taken several compulsory exams and now 68 of 77 pupils have been told they need to sit more tests.

It is unclear whether the problems are due to administrative errors or sloppiness on behalf of teachers, but ‘there are problems in every subject’ a spokesman for the Calvijn College told the Volkskrant.

The nine pupils who have taken all the vmbo exams have to wait for the rest to find out their results. Some 15 pupils have to take more than two exams to finish their school year.

There were similar problems with incomplete exams at a trade school in Maastricht last year.