There are two or three standard tests in widespread use. One is the Simard. It never changes. Another has a couple of variants, mainly different addresses. The tests are all on-line and can easily be memorised and practiced. Draw a clock. Remember an address. Create and memorise a shopping list or a zoo population. 30 is a perfect score. I have done them all. My doctor insists on the Simard. Good thing because it never changes. Apple, ink, nail, bird, book, ticket, tree, chair, house, ship. I will never be able to forget that!