The standard ImPACT test takes about 25 to 35 minutes to complete. The pediatric version, designed for younger children, is shorter at around 20 minutes. Either way, it’s a single sitting with no physical component, just a series of tasks on a computer or tablet.
What Happens During Those 25 to 35 Minutes
The ImPACT test is a computerized neurocognitive assessment most commonly used in sports to establish a baseline of brain function before the season starts. If a concussion occurs later, the athlete retakes the test and the results are compared to that baseline.
The test measures five cognitive areas: verbal memory, visual memory, reaction time, processing speed, and impulse control. You’ll work through a series of modules that feel like simple puzzles or memory games. One section might ask you to memorize a set of words, another might flash shapes or patterns you need to recall later, and others test how quickly and accurately you respond to prompts on screen. There’s also a brief symptom questionnaire and a demographic section at the beginning. None of the individual modules are especially long, but together they add up to that 25 to 35 minute window.
The range in completion time is normal. Some people move through the modules faster than others, and the test is self-paced within each section’s time limits. You don’t need to rush. The goal is to perform at your actual ability level, not to finish as quickly as possible.
The Pediatric Version Is Shorter
Children ages 5 to 9 take a different version called Pediatric ImPACT, which runs about 20 minutes. It’s presented as an educational video game on a tablet rather than a traditional computer test, making it more accessible for younger kids who might struggle with a keyboard-and-mouse format. The standard version is typically used for athletes age 12 and older.
What Happens If Your Results Are Invalid
Sometimes a baseline test produces invalid results. This can happen if you weren’t paying attention, didn’t understand the instructions, or clicked through sections too quickly. When validity indicators are flagged, you’ll need to retake the test.
The retest itself takes the same 25 to 35 minutes, but scheduling it adds extra time to the process. Research published in the Journal of Athletic Training found that only about 19% of athletes with invalid baselines were retested within two weeks, with the average gap being about four days. The good news: 87% of those who did retake the test within that window produced valid results the second time around. To avoid needing a retest, take the baseline seriously. Sit in a quiet environment, minimize distractions, and give each section your genuine effort.
Baseline vs. Post-Injury Testing
The post-injury version of the ImPACT test covers the same cognitive modules as the baseline, so the time commitment is similar. The key difference isn’t duration but context. After a concussion, you may find the test more mentally taxing, and your scores on memory, reaction time, and processing speed are compared against your pre-injury baseline to help gauge recovery.
Some athletes are retested multiple times during recovery to track improvement. Each session is the same length, so plan for roughly 30 minutes per visit. The symptom questionnaire portion becomes especially important in post-injury testing, as it captures headaches, dizziness, fogginess, and other symptoms that the cognitive modules alone might not reflect.
How to Prepare for Test Day
No studying is needed, but a few practical things affect how smoothly the session goes. Get a normal night’s sleep beforehand. Fatigue can slow your reaction time and hurt your memory scores, which could either produce an invalid result or set an artificially low baseline that makes future comparisons less useful. Eat a regular meal and stay hydrated. Avoid caffeine or energy drinks beyond your normal routine, since they can artificially inflate your processing speed.
If you wear glasses or contacts, bring them. The test involves on-screen visual tasks, and squinting through blurry text will skew your results. Most testing centers ask you to put your phone away and sit in a quiet room. If you’re taking the test at home through the remote version, find a distraction-free space and close other browser tabs. The 25 to 35 minutes will go quickly if you’re focused, and the results will be far more useful if they reflect your actual cognitive abilities.