Which statement best illustrates knowledge-based safety competencies in Quality and Safety Education for Nurses (QSEN)?

• A. Valuing one's own role in preventing errors
• B. Appreciating the cognitive and physical limits of human performance
• C. Using organizational error reporting systems
• D. Examining human factors and other basic safety design principles

Answer: (D)

Understanding how systems, human factors, and safety design influence patient outcomes is at the heart of knowledge-based safety competencies. Examining human factors and other basic safety design principles shows this knowledge in action: it requires knowing why certain design choices—like equipment interfaces, workflow layouts, and environment—affect error rates and safety, and applying that understanding to improve care. The other statements lean more toward safety attitudes or practical actions (valuing one’s role, recognizing limits, or using error-reporting systems) rather than the knowledge base about how safety is built into design and systems.