Multi select Question skipping on amount of answers selected

Question

If only one vendor is chosen in Q23 skip

Answer 1

There is a built in SSIScript command that was created for just this.  NumChecked.  So you can set a skip as NumChecked (Q23)=1

Answer 2

And I'll throw in an additional comment ...

If a constructed list evaluates to only one item, and then you use that constructed list at a specific question, then that question will be skipped and the item will be auto-coded.