The “Clinical Outcomes in Routine Evaluation – 10” (CORE-10) is a brief, self-report questionnaire designed to measure psychological distress and monitor therapeutic outcomes. Covering key mental health domains such as anxiety, depression, trauma, and functioning, the CORE-10 consists of 10 items rated on a 5-point scale. This widely used tool supports clinical decision-making by tracking treatment progress over time. Its brevity and effectiveness make it ideal for routine use in clinical settings to assess and improve patient care.