GPCOG: General Practitioner Assessment of Cognition

9-item cognitive screen designed for general practice with patient and informant components. ≈ 5 min to complete. Free with attribution.

cognitive 15 items ≈ 5 min Updated 2026-05-06

Score GPCOG below → Download printable PDF View source paper (DOI)
What is GPCOG? GPCOG (General Practitioner Assessment of Cognition) is a validated instrument used to assess 9-item cognitive screen designed for general practice with patient and informant components.. It is used in 9-item cognitive screen designed for general practice with patient and informant components.. It comprises 15 items. Administration takes about 5 min.

What is GPCOG?

GPCOG (General Practitioner Assessment of Cognition) is a validated clinical instrument used to assess 9-item cognitive screen designed for general practice with patient and informant components.. It is most often used for 9-item cognitive screen designed for general practice with patient and informant components.. The instrument contains 15 items. Typical administration time is ≈ 5 min.

Source / attribution: Free to use with citation

Clinical context: when GPCOG is used

9-item cognitive screen designed for general practice with patient and informant components. GPCOG is part of standard practice in this setting because it provides a structured, replicable assessment that can be tracked over time and compared across patients or visits.

Like all screening or assessment instruments, GPCOG is a structured aid — not a diagnostic test in isolation. Results should be interpreted alongside history, examination, and clinical context. Where a score crosses an actionable threshold, the next step is typically a more detailed clinical evaluation rather than a definitive diagnosis.

Score GPCOG

Answer all 15 items below to see your GPCOG score and interpretation.

All scoring runs in your browser. No data is sent anywhere — close the tab and the answers are gone.

How GPCOG is scored

Patient component scored 0-9. Informant component 0-6 if needed. Total max 15. Score <= 4 suggests cognitive impairment.

Scoring notes: Patient component scored 0-9. Informant component 0-6 if needed. Total max 15. Score <= 4 suggests cognitive impairment.

GPCOG score interpretation

The cutoffs below are drawn from the published validation literature. Always interpret in clinical context.

Score rangeBandInterpretation
9–15NormalNone
5–8Possible impairmentFurther evaluation
0–4Cognitive impairmentComprehensive assessment

How to score GPCOG: a step-by-step worked example

This is an illustrative walkthrough, not a real patient. Follow the same four steps with your own answers — or use the live calculator at the top of this page.

Step 1 — Score each item

Mark each item Yes or No. Each "Yes" adds the item's weight; each "No" adds 0. The example below uses illustrative answers.

#ItemExample responseScore
1Patient: Correctly recalls today's dateNo0
2Patient: Clock face — circle drawn correctlyYes1
3Patient: Clock face — numbers placed correctlyNo0
4Patient: Clock face — hands set to 11:10 correctlyYes1
5Patient: Recalls a recent news eventNo0
6Patient: Recalls full name from address (e.g., 'John')Yes1
7Patient: Recalls street number from addressNo0
8Patient: Recalls street name from addressYes1
9Patient: Recalls suburb/city from addressNo0
10Informant: Patient has more trouble remembering recent events than beforeYes1
11Informant: Patient has more trouble recalling conversations a few days laterNo0
12Informant: Patient has more difficulty finding the right wordYes1
13Informant: Patient is less able to manage money and financesNo0
14Informant: Patient is less able to manage medications independentlyYes1
15Informant: Patient needs more help with transport (driving, public transit)No0

Step 2 — Add up the scores

Add the weights from the items where you marked "Yes" (skip the "No" answers — they contribute 0).

0 + 1 + 0 + 1 + 0 + 1 + 0 + 1 + … (items 9–15 sum to 3) = 7

Step 3 — Look up the band

Find the row in the interpretation table whose range contains your total:

Total = 7 falls between 5 and 8 → Possible impairment

Step 4 — What does this mean clinically?

Possible impairment. Further evaluation

A score is one input alongside history and examination. GPCOG supports clinical judgment — it does not replace it.

Score GPCOG with your own answers above →

GPCOG psychometric properties

Psychometric figures are drawn from the validation literature and may vary across clinical populations and translations.

Limitations & common pitfalls

How GPCOG compares to other cognitive scales

If GPCOG doesn't fit your context, related instruments in cognitive include:

ScaleMeasuresItemsTime
MMSE30-point cognitive screening test for dementia and cognitive impairment.11≈ 10 min
PHQ-9Severity of depression9≈ 3 minutes
GAD-7Severity of generalized anxiety7≈ 2 minutes
AUDIT10-item WHO screening tool for hazardous alcohol consumption and dependence.10≈ 3 min
CHA2DS2-VAScAnnual stroke risk in non-valvular atrial fibrillation8—
Glasgow Coma ScaleLevel of consciousness after head injury3—
MELD-Na3-month mortality in advanced liver disease; transplant prioritization5—

Frequently asked questions about GPCOG

What does GPCOG measure?

GPCOG (General Practitioner Assessment of Cognition) is a validated instrument that assesses general practice with patient and informant components. It is designed for clinicians, medical students, evidence-synthesis researchers. It takes about 5 min to complete, and the 15 items are summed to produce a total score.

How long does GPCOG take to complete?

GPCOG typically takes about 5 min to administer. The exact duration varies a little depending on whether it is self-administered or completed with a clinician. Its brief format is part of what makes it practical for routine clinical use and for repeat administration when tracking change over time.

How many items are on GPCOG?

GPCOG contains 15 items. Item scores are summed to produce the total. Scores run from 0 to 15, grouped into 3 interpretation bands from ‘Normal’ up to ‘Cognitive impairment’.

What is a high GPCOG score?

On the GPCOG (total score 0–15), scores of 0–4 fall in the ‘Cognitive impairment’ band — interpreted as: Comprehensive assessment. The full ladder is: 9–15 — Normal: None.; 5–8 — Possible impairment: Further evaluation.; 0–4 — Cognitive impairment: Comprehensive assessment. A higher score reflects a more severe presentation, and crossing a cutoff is a prompt to step up assessment or care — but these bands are screening thresholds, not diagnoses.

What is a low GPCOG score?

Scores of 9–15 fall in the ‘Normal’ band: None. A low score is reassuring but does not by itself rule out the underlying condition — if symptoms or clinical suspicion persist, reassess over time or use a complementary evaluation rather than relying on the number alone.

How reliable is GPCOG?

GPCOG has reported Cronbach's α of 0.82 in validation samples and test–retest reliability of 0.8. Designed for primary care; better than MMSE in GP settings. In practical terms, a Cronbach’s α around 0.82 indicates good internal consistency (the items hang together well), and a test–retest reliability of 0.8 means scores are strongly stable when the scale is repeated without real clinical change.

Is GPCOG free to use?

GPCOG is free to use with attribution — clinical, educational, and research use is permitted provided the original source is credited. If you publish results or reproduce the scale, include the citation to the source paper.

What is the source paper for GPCOG?

Brodaty, H., Pond, D., Kemp, N. M., et al. (2002). The GPCOG: A new screening test for dementia. International Psychogeriatrics, 14(1), 1-12. This is the original publication for the GPCOG — the reference to cite when reporting results.

Can GPCOG replace clinical judgment?

No. GPCOG is a structured assessment aid, not a diagnostic test. Its proper role is clinical assessment of general practice with patient and informant components — it standardizes assessment and flags who needs closer evaluation, but the result must be weighed alongside history, examination, and clinical context. When a score conflicts with your clinical impression, clinical judgment takes precedence; treatment decisions should never rest on a screening score alone.

References & validation

GPCOG is supported by the following peer-reviewed sources: