For homeschoolers, it's probably a good idea to check if your child displays secure attachment first (since insecure attachment in the child is generally caused by the parents, and schooling your child at home might just make it worse).

And on a final note: why the hell don't we systematically test all children for attachment styles? They: a) can be detected very early, b) are much easier to correct when caught early, and c) have vast impacts for the child's whole life. You don't need any equipment except a trained psychologist!