Does ImPACT require an external mouse? ImPACT was validated and normed using a mouse, so it is recommended. Updated on 01/28/2019 Tagged: ImPACT Was this article helpful? Yes No Related Articles Why do I have to retake my baseline test? How do I add another user to my account? Who has access to clinical reports via ImPACT Passport IDs? What billing codes should I use for ImPACT Applications’ products? My login screen is saying “There are unuploaded tests on this device.” What should I do? What are the reliable change indices (RCIs) for the ImPACT composite scores?