In principle, of course, no changes should be made to the exam data.
In exceptional cases that are justified for you, you can use the Post-edit exam results plug-in. This allows you to adjust the assessment for the participants individually. This also changes the data in the reports and raw data. Attention, the plug-in is not available for multiple choice, Kprim and assignment questions!
Other options you have are:
- Exporting the raw data as .csv and editing the raw data table in Excel (=outside EvaExam). The Excel table cannot be imported back into the Syetem.
- inside EvaExam: assign exam data/maximum score and take the question "out of scoring" for all participants, but at the same time this would give an advantage to all who had answered the question incorrectly.