My 8 yo is a DYS. We did the portfolio because I didn't want to have to pay for another round of testing. It was easy as can be. I found some worksheets online that were listed as several years above grade level (and actually WERE - sometimes they are not). I made up 1 worksheet on my own. And I had actually saved a workbook DS had done when he was 3 (you can submit one piece that is more than 2 years old)