Final answer:
Evidence-based practice is the systematic approach used to examine phenomena in nursing, incorporating both quantitative and qualitative research to inform clinical decisions.
Step-by-step explanation:
A systematic approach used to examine phenomena important to nurses and nursing is most accurately described as evidence-based practice. This approach involves integrating individual clinical expertise with the best available external clinical evidence from systematic research. Quantitative research and qualitative research are methodologies that can contribute to evidence-based practice.
Qualitative research is a method that seeks to understand human behavior by learning about it through in-depth interviews, focus groups, and analysis of content sources like books, magazines, and journals. This subjective evidence is difficult to control and replicate. On the other hand, qualitative analysis often supports case studies by providing a detailed examination of a single instance, event, or social setting.
However, for a comprehensive understanding of a phenomenon, especially in nursing, an evidence-based practice approach ensures that the most current and high-quality research informs clinical decision-making. This involves a balance of the best research evidence, the clinician's experience, and patient preferences and values.