How Do Baseline Concussion Testing Programs Work? | Kavera

Q: What happens if an athlete's baseline was poorly administered?

A low-quality baseline can distort post-injury comparisons and should be flagged rather than relied upon. Programs with basic quality-control checks at the time of testing reduce this risk.

Baseline concussion testing programs collect pre-season symptom, cognitive, and balance data from athletes so that, if a concussion later occurs, clinicians can compare post-injury results against that individual's own prior scores rather than population norms alone. Baseline data supports return-to-play decisions but never replaces a clinical concussion diagnosis.

What a Baseline Testing Program Actually Measures

A well-designed baseline program is multi-domain, not a single test. Consistent with the 6th International Consensus Statement on Concussion in Sport (Amsterdam, 2023), programs typically combine three components administered before the season starts:

Symptom checklist and history — the symptom inventory portion of SCAT6 or Child SCAT6 (ages 8–12), plus a structured history covering prior concussions, migraine history, psychiatric history, and learning disability or ADHD, all of which are established modifying factors for recovery.
Computerized neurocognitive screening — brief measures of processing speed, memory, and reaction time (tools such as ImPACT are commonly used in organized sport). This is a comparison and screening tool, not a diagnostic neuropsychological evaluation.
Balance/postural control testing — the modified Balance Error Scoring System (mBESS) or, where available, force-plate balance assessment.

Some programs also incorporate a brief vestibulo-ocular motor screen (VOMS) at baseline, since vestibular and oculomotor findings are among the more sensitive predictors of prolonged recovery when they change after injury.

Why Individual Baselines, Not Just Population Norms

Cognitive and balance performance vary widely across healthy individuals based on age, prior concussion history, learning differences, and sport. A single post-injury score compared only to population averages can miss a real decline in an athlete who started well above average, or falsely flag an athlete who started below it. An individual baseline gives the clinician a "return to self" reference point rather than a "return to average" one. Amsterdam consensus guidance and CDC HEADS UP clinical materials both frame baseline testing this way: useful context for interpretation, not a stand-alone diagnostic threshold.

What a Baseline Program Is Not

Three limitations matter enough to state explicitly, because they are the most common source of baseline-program misuse:

A normal or absent baseline should never delay or prevent a concussion diagnosis. Concussion remains a clinical diagnosis based on history, exam, and symptom trajectory — not a test-score cutoff.
Baseline testing is not a substitute for formal neuropsychological evaluation. When cognitive complaints are disproportionate to physical symptoms, or recovery is prolonged, referral to neuropsychology is appropriate regardless of what the baseline showed. See When to Refer for Neuropsych Testing.
Low-effort or poorly administered baselines undermine the whole comparison. A rushed or noisy testing environment produces an artificially low baseline, which can mask a genuine post-injury decline. Quality control — a quiet room, standardized instructions, and basic effort-validity checks — is part of the program, not an optional add-on.

Program Design: Cadence, Administration, and Re-Baselining

Most organized programs test athletes once before the season, with a common practice of re-baselining every one to two years, particularly in youth athletes where developmental changes affect cognitive and balance performance over time. Administration should follow a consistent protocol across athletes — same instructions, same testing conditions, same trained administrator role — so scores are comparable both to the athlete's own future post-injury results and, where used, to team or organizational trends.

A baseline program works best embedded in broader program infrastructure rather than deployed as a stand-alone screening exercise: a defined chain of custody for the data, a trained administrator role, and — critically — a clear, pre-established post-injury testing and referral pathway. A baseline collected with no plan for how it will be used after an injury adds administrative burden without adding clinical value.

How Baseline Fits Into the Broader Concussion Pathway

Baseline testing is one input at one point in a longer clinical pathway. After an injury, the relevant comparisons happen at sideline versus clinic assessment, inform the return-to-play decision, and — for athletes with prolonged symptoms — feed into decisions about neuropsych referral and the broader post-concussion recovery timeline. None of these downstream decisions depend on baseline data existing, but where it does exist, it sharpens the comparison.

How Kavera Handles This

Kavera doesn't run pre-season baselines. The baseline in the Kavera protocol is the first post-injury visit, and every weekly check-in and cognitive test after it is read against that. Practices that hold pre-season data can enter it; the program picks up when the patient is in your office. Self-Serve practices run this with their own staff. On Managed, Juliet Mott's team runs it and bills it under your credentials.

FAQ

Does every athlete need a baseline test before playing?

Baseline testing is common in organized contact and collision sports but is not universally mandated. Its value is as a comparison tool; an athlete without a baseline can still be diagnosed and managed for concussion using standard clinical assessment.

Can a normal baseline test rule out a future concussion?

No. Baseline scores establish a pre-injury reference point only. Concussion diagnosis and management decisions are made clinically, based on history, exam, and symptom trajectory — not by comparing a single post-injury score to a baseline cutoff.

How often should baseline testing be repeated?

Many programs re-baseline every one to two years, more frequently in younger athletes given ongoing developmental change. Organizational policy and sport-specific guidance may set a different cadence.

Is computerized baseline testing the same as neuropsychological testing?

No. Computerized baseline tools are brief screening and comparison instruments. Formal neuropsychological evaluation is a more comprehensive assessment performed when there is diagnostic uncertainty, disproportionate cognitive complaints, or a need for detailed differential evaluation. See When to Refer for Neuropsych Testing.

What happens if an athlete's baseline was poorly administered?

A low-quality baseline (rushed, noisy environment, low effort) can distort post-injury comparisons and should be flagged rather than relied upon. Programs with basic quality-control checks at the time of testing reduce this risk.