Hello, Petra,
to add something:
I agree that this translation of "don't know" to "niet van toepassing" might not be the best.
So you can become a contributor to the translation of LS
Translating LimeSurvey
If you want to add a new language, please check out the documentation and get in touch with our translator community manager.
If you want to update an existing translation please register an account on limesurvey.org first and login once. Then go to
translate.limesurvey.org
and start translating! Thank you for your help with translations!
There you login again, click "LS 2.50" and then "Dutch".
Filter "no answer" with status "any"
and here on the second page you see in the forth row: (don't pay attention to the arrow in the screenshot)
Click "details" and enter your new suggested translation.
At last you click:
Your suggestion will be checked, and if accepted be in an update of LS.
And you will be in the "hall of fame" of contributors to LS and will be mentioned in the update details.
Best regards
Joffm