I have a client that is very opinionated about what she likes and dislikes about my design and moves things around to where they "look right" for her. I want to test my original mock-ups vs her revised ones with users but they are only mock ups. I just want to make the point that users will be very confused if she hides some key features that set her apart from her competition - the opportunity to buy an item or get to the personalization process of her shopping experience.
Which would be most effective? 1) Do a simple test by asking users what they understand from the mock ups and where they would go to do what as open-ended questions; 2) Do "fake tasks" like asking "where would you go to...(desired action)?" Can I then do this with the different sets of mock ups or does it have to be one user per mock-up version?
I think this site has a lot of potential for success but am worried her apprehensiveness and micro-managing may be undermining the site goals. However, explaining this to her has been of no help. She thinks I insist on things because I am "passionate" not because I am just plain old experienced.