The SBAC page at SPS says this:
Families who refuse to allow their children to participate in assessments, including Smarter Balanced, must submit the refusal in writing, signed and dated, to go in the student's permanent record file. Parents or guardians must submit this refusal annually. Families may use THIS FORM or submit a clear written and signed document.That's rather interesting wording in red as I might perceive they mean it has to be hand-written, not typed. Why that would be, I don't know.
Here's the SBAC page at SPS. I note that when you hit the spot for the form to refuse, it does NOT take you to the form. It takes you to yet another page. Here's the link to the SBAC form.
In the SBAC form, I'm supposing they want you to realize, in humiliating detail, how you are failing your child. I also have to laugh at stating "my reason" - honestly, it's not SBAC or SPS' business.
I will ask if the SBAC form is the only one being taken by schools or are principals allowed to make anything up that they want.