General Health Questionnaire-12 (GHQ-12)
Also known as: GHQ-12, GHQ
The General Health Questionnaire-12 (GHQ-12) is a brief, 12-item self-report screening instrument for psychological distress and mental health problems in the general population. Developed by David P. Goldberg, the GHQ-12 is the most widely used short form of the longer General Health Questionnaire series. It is designed for rapid detection of minor psychiatric morbidity and assessment of psychological well-being in clinical, occupational health, and community settings.
Key highlights
- Ultra-brief 12-item format enables rapid administration in time-constrained settings with minimal respondent burden
- Excellent sensitivity and specificity for detecting psychological distress across diverse populations and settings
- Strong psychometric properties with high internal consistency and test-retest reliability well-established across 40+ years of research
- Widely translated (over 30 languages) and culturally validated across diverse nations and ethnicities
Intuition
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How it works
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When to use it
The GHQ-12 is ideal for rapid screening in primary care, occupational health programs, community surveys, and public health surveillance. It is particularly valuable for detecting psychological distress in non-mental-health settings (e.g., general practice, workplace wellness programs, student health services). The instrument is less suitable as a diagnostic tool alone (clinical interviews required for diagnosis) but excels at case-finding and identifying individuals who warrant further mental health assessment. It is frequently used in longitudinal research to track population mental health trends.
Strengths & limitations
- Ultra-brief 12-item format enables rapid administration in time-constrained settings with minimal respondent burden
- Excellent sensitivity and specificity for detecting psychological distress across diverse populations and settings
- Strong psychometric properties with high internal consistency and test-retest reliability well-established across 40+ years of research
- Widely translated (over 30 languages) and culturally validated across diverse nations and ethnicities
- Not diagnostic of specific psychiatric disorders; elevated GHQ-12 scores require follow-up clinical assessment to determine diagnosis
- Self-report bias: social desirability and minimization can lower scores; situational stress may transiently elevate scores without reflecting chronic distress
- Variable cutoff values across studies and populations; optimal threshold differs for occupational health, clinical, and community samples
Common pitfalls
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Applications
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Frequently asked
Is the GHQ-12 a depression measure, an anxiety measure, or both?
The GHQ-12 is a non-specific psychological distress screener, not a depression-specific or anxiety-specific instrument. It detects a range of mental health problems including depression, anxiety, loss of confidence, and social dysfunction. For diagnosis of specific disorders, use measures like the PHQ-9 (depression), GAD-7 (anxiety), or clinical interview.
What is the difference between Likert and binary GHQ-12 scoring?
Likert scoring preserves the full 4-point response scale, yielding scores 12–48 and better discriminating mild from severe distress. Binary scoring collapses responses to 0 or 1, yielding scores 0–12, and is simpler but less nuanced. Likert scoring is preferred for research; binary scoring is used in some clinical settings for simplicity.
What GHQ-12 cutoff should I use?
Standard cutoffs are GHQ-12 >15 (Likert) or >2–3 (binary) for probable psychological distress, but optimal cutoffs vary by population. Employed workers may use GHQ-12 >16; students or psychiatric patients may use different thresholds. Consult validation studies for your specific population before selecting a cutoff.
Can the GHQ-12 be used repeatedly to monitor treatment progress?
Yes. The GHQ-12 is sensitive to change and can be administered repeatedly (e.g., monthly) to track psychological distress during treatment. A reduction of 3–4 points typically indicates clinically meaningful improvement. However, it is best supplemented with syndrome-specific measures (e.g., PHQ-9 for depression) for detailed symptom tracking.
Sources
- 1.Goldberg, D. P. (1972). The detection of psychiatric illness by questionnaire. Oxford University Press.
- 2.Goldberg, D. P., & Williams, P. (1992). A user's guide to the General Health Questionnaire. Windsor: NFER-Nelson.ISBN 978-0-7005-1220-5
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Cite this page
ScholarGate. (2026, June 3). General Health Questionnaire. ScholarGate. https://scholargate.app/clinical-psychology/ghq-12