The world's most widely used nursing research textbook, Essentials of Nursing Research, Tenth Edition equips students with everything they need to confidently apply research to nursing practice. AJN award-winning authors Denise Polit and Cheryl Beck clarify the language of nursing research and instill a practical understanding of nursing research fundamentals and the research process for both quantitative and qualitative studies -- including design principles; sampling and data collection; criteria for assessing data quality; appraising the quality, rigor, and trustworthiness of studies; and approaches to understand the statistical results. This updated edition incorporates the latest clinical insights and approaches to research to familiarize students with increasingly important considerations in today's nursing practice, including the involvement of patients and stakeholders in translating research evidence to local settings; the appraisal of not only the rigor of research designs and methods but also the relevance and applicability of practice-based evidence; and the effective use of research in local quality improvement (QI) projects.