"Go Back" option

I'm having a problem with the "Go Back" option for questionnaires. If I complete a question on one page, click "go back" to go to a previous page, and then go back to the question on the other page, the data I entered on that page is lost. How can this be changed? Thank you again!

We're working on this, but the GoBack feature was initially intended to be an option to allow subjects to return to the immediately preceding item--a useful thing when using scale responses given their automatic procession, but no so much so when designing a test like you're describing. In the next version, I expect we will implement a feature like you are describing--a way to let them go through the questions.. and then go through them once again, automatically skipping ones they have already answered.. Kind of like a "come back to this one later" option. I'll cc this to the suggestions area.

-Blair