A baseline concussion test typically takes 30 to 45 minutes to administer and receive results, depending on the specifics of the test. These concussion tests are neurocognitive tests taken on a computer and used for comparison if a person receives a concussive injury, explains the Sports Concussion Institute.
If data from a baseline concussion test is available when a person receives a traumatic head injury, the injured person can take the same test post-injury, and coaches and medics can compare the answers. Results allow individualized treatment of each person's concussion, according to the Sports Concussion Institute. Tests measure reaction time, mental processing speed and memory, and they can be taken on any computer with an Internet connection.