There are few ways to do this. The easiest, I think, would be to ask the question using a "scale response" item type and then, on the final item of the session, you could embed the response from that item in the question wording. e.g., if the test question variable name were "q13" then later on you could display an item with the wording "the response to question 13 was <q13>"

Additionally, you could also insert a password screen before that item so participants couldn't see it (see the x parameter when using an Instruction item for details).