Sounds like it might be a 2 step solution. 1) right click on your group, select change group, second tab check 'Keep Group Together'. This will do its best to keep all results on one page. 2) In Section Expert for your group in New Page Before formula enter Not OnFirstRecord.
Step 2 might be optional, if you want only 1 test category per page, this would do it. If you don't mind 2 or more per page (providing they fit because of step 1) don't worry about this step.
Hope this helps