The GOS, DRS, and GOAT will be assessed at one month post-injury. At the time of hospital discharge, each patient's disposition will be noted (morgue, nursing home, rehabilitation facility, another acute care hospital, patient's home, relative's home), so plans can be made for a follow-up exam one month post-injury. Subjects who are still hospitalized at GMH, an inpatient rehabilitation facility, a skilled nursing home, or an acute care hospital other than GMH one month post-injury will be tested on site. We will visit patients who are homebound at the time of follow-up. All other subjects will be asked to come to a study clinic at GMH for testing. Patients who are too severely impaired to test at one month post-injury will be classified as "not testable". This category will be considered a surrogate marker for a poor outcome. We will utilize reliability codes to record all possible reasons for the non-administration of a particular measure, such as physical impairment (e.g., hemiparesis) cognitive impairment (e.g., did not understand instructions), or intoxication.