No one likes to get a bad review, especially one you think is flat-out wrong. But before you tell your boss that their assessment missed the mark, bite your tongue. Instead, say something like: “This assessment comes as a surprise. I’d like to think about it and perhaps have another conversation before this becomes official. May I get back to you in a day or two?” That lets your boss know that you’re concerned about the accuracy of the evaluation without having to achieve instant resolution. Then sleep on it. Think about your performance over the past year to consider whether your boss’s assessment might be on target — or at least not so far off that it’s worth making a major fuss over.