The speaking proficiency test is usually videotaped to enable further assessment if necessary. The recording, as well as other parts of the test, can also be used in the training of assessors or for research. In these cases, the tests are anonymized. If you do not agree to have your speaking proficiency test videotaped it will instead be recorded as an audio file.

Here you find more information about how personal data is handled at Stockholm University: 
https://www.su.se/english/about-this-website/privacy-policy/how-personal-data-is-handled-at-stockholm-university-1.387945