Performance review season is rapidly approaching at my company, and our manager's manager has asked us to help her by creating a word document that has a list of our achievements from the past year and share it with her and our direct manager.
Additionally, she has asked us, in the same document to do our review of our direct manager.
I've tried convincing her that this is a bad idea, but she didn't seem to get the point that I was making - I don't believe it's a good idea for my direct manager to have access to my review of her before she's done the review of me. If I give a bad review, it could subconsciously cause my manager give a worse review of me, and if I give a glowing review, it could similarly cause her give a better review of me than I actually deserve.
What kinds of things should I say to her to convince her that this is a bad idea?