XML Schema: how to have multiple identical elements?

Question

I\'m having quite a hard time on constructing my 1st XML Schema. I need it to verify the correctness of an XML document that forms a questionnaire.
So here\'s the sectio

Answer 1

I don't know, what should be validated exactly, but the following xml schema would validate for three value tags within a values tag within a root tag. The values has to be strings: