The ACE Questionnaire
Adverse Childhood Experiences — Understanding the Impact of Early Trauma
The ACE (Adverse Childhood Experiences) questionnaire is an awareness tool derived from one of the most significant public health studies on the links between childhood trauma and adult health. It helps individuals recognize adverse experiences they may have had before the age of 18 and understand their potential impact on physical, mental, and relational well-being.
📊 Origins and Clinical Background
The ACE Study was conducted between 1995 and 1997 by Dr. Vincent Felitti (Kaiser Permanente, San Diego) and Dr. Robert Anda (Centers for Disease Control and Prevention — CDC). Published in 1998, it enrolled more than 17,000 participants and was the first study to establish a dose-response relationship between the number of adverse childhood experiences and adult health outcomes: chronic disease, mental health disorders, substance use, and relational difficulties.
The ACE study has since become a global reference in trauma-informed medicine and public health prevention.
🗒️ The 10 Domains Assessed
The ACE questionnaire explores 10 categories of adverse experiences occurring before age 18, grouped into three main areas:
Abuse
1. Emotional abuse (verbal humiliation, threats)
2. Physical abuse
3. Sexual abuse or contact
Neglect
4. Emotional neglect
5. Physical neglect
Household Dysfunction
6. Witnessing domestic violence
7. Household substance abuse (alcohol, drugs)
8. Mental illness or suicide attempt of a household member
9. Parental separation or divorce
10. Incarceration of a household member
📊 Understanding Your Score
Each “Yes” answer counts as 1 point. The total score ranges from 0 to 10.
Score 0–1: Little or no detected exposure to adverse experiences.
Score 2–3: Moderate exposure. Some health effects are possible, though less pronounced.
Score ≥ 4: Clinically significant threshold. The study shows increased correlation with chronic disease, mental health conditions, relational difficulties, and risk-taking behaviors in adulthood. This threshold applies to approximately 12% of the general population.
⚠️ Important Precautions
The ACE questionnaire is an awareness and educational tool, not a medical or psychological diagnosis. A high score does not determine your future: many resilience factors — social support, therapy, personal resources — significantly moderate the effects of adverse experiences.
If this questionnaire brings up painful memories or if you would like to explore these experiences with professional support, please feel free to get in touch.
🔗 Take the Questionnaire
Here are trusted resources to access the ACE questionnaire and understand your results:
📖 CDC — About Adverse Childhood Experiences
The official CDC resource page on ACEs, including background, research findings, and prevention strategies.
📝 ACE Questionnaire (PDF) — CDC
The original 10-question ACE questionnaire with scoring instructions.
🔬 Original Study — Felitti et al. (1998)
American Journal of Preventive Medicine — The landmark paper establishing the ACE-health connection.
References
• Felitti V.J. et al. (1998) — Relationship of childhood abuse and household dysfunction to many of the leading causes of death in adults. American Journal of Preventive Medicine, 14(4), 245–258.
• CDC — Centers for Disease Control and Prevention — About Adverse Childhood Experiences
• Kaiser Permanente / UCSF — Original ACE Study data collection site (San Diego, 1995–1997)