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Printed on 4/21/2026
For informational purposes only. This is not medical advice.
The ECog-12 is a short informant questionnaire assessing decline in cognitively mediated everyday activities such as memory, language, and executive function. Items are scored from 1 to 4, and the mean score is commonly used for interpretation, with higher values indicating greater decline.
Formula: ECog-12 mean score = total score / 12 (mean range 1.0-4.0).
ECog-12 was developed as a psychometrically strong short form of the ECog and has continued validation for cognitive-impairment discrimination.
Higher ECog-12 means indicate greater informant-reported everyday cognitive decline.
Use when an informant is available and clinicians need collateral functional-cognition context in dementia evaluation.
Informant bias and varying patient contact can influence results; interpret together with objective and clinical findings.
For related assessments, see Pfeffer FAQ, IQCODE-16 and AD8 Screen.
Disclaimer: This tool is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about your health.
Assess instrumental daily-function impairment with the 10-item Pfeffer FAQ (0-30).
GeriatricsEstimate informant-reported cognitive decline using the short 16-item IQCODE mean score.
GeriatricsScreen for cognitive impairment using the 8-item AD8 informant interview (score 0-8).
GeriatricsClassify dementia severity with the Clinical Dementia Rating global stage (0, 0.5, 1, 2, 3).