Hello, there is not a way to assign an assessment to someone. You have a couple of options, the first is to do it together.
You can send them to the how-to page: https://communicationmatrix.org/Matrix/Pages/Using...
Or you can create a group: https://communicationmatrix.org/Matrix/Pages/Using... and make an account for them.
If you have any other questions, please email us at info@communicationmatrix.org
Communication Matrix Team - 5/8/2017