How do you take a reading counts quiz at home?

You can't you have to buy it, but if you find a way i admit you are smarter then me. :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :)