Not sure why you want the form but we did the scale without it. Just use the samples in the manual and create your own version for scoring. It works just as well. I've only ever seen people want the form for formal entry into a school record, just so it looks more official. Typically the school purchases the forms. That's why they are sold in packs of 10.

My son was tested at the U of Iowa, where the form was created and THEY don't even give or sell you one form!