In contrast to the DNP preparation, the Doctor of Philosophy (PhD) education develops nurse scientists who will generate new knowledge (American Association of Colleges of Nursing, 2010). The number of graduates with a research-focused doctorate is less than half of those graduating with the DNP (American Association of Colleges of Nursing, 2012). Many PhD graduates become employed in academia, though the number employed in the hospital setting is growing (Brant, 2015). Literature discusses the differences and similarities between the two degrees and theoretically describes way in which the DNP and PhD complement one another (Edwardson, 2010; Melnyk, 2014). There is a role for the DNP in research, and particularly an important role in translational research, or implementation science (Florczak, Poradzisz, & Kostovich, 2014), however, there are few examples of this collaboration in practice.
Research can take over 17 years to be put into practice (Morris, Wooding, & Grant, 2011), yet nursing practice is expected to be evidence-based. The role of the hospital-based nurse scientist is to bridge the gap between practice and research and to encourage a culture of inquiry (Brant, 2015). It would be unrealistic for a hospital-based nurse scientist to be an expert in each clinical area, yet these researchers often serve as resources to entire organizations (Brant, 2015). The PhD nurse leader is able to provide consultation and mentoring throughout the research process, but must rely on others, ideally the DNP nurse leader, for the clinical and systems expertise and understanding of the wide variety of practice settings. When working together in the hospital setting, both the DNP- and PhD-educated nurses are able to transform care in a way neither could accomplish independently.
Implementation science, “the investigation of methods, interventions, and variables that influence adoption of evidence-based healthcare practices by individuals and organizations to improve clinical and operational decision making” (Titler, Everett, & Adams, 2007, p. S53), provides an opportune medium to cultivate this intradisciplinary collaboration. Two implementation science research studies at a Magnet-designated, academic medical center illustrate this collaborative relationship.
To conduct a research study exploring the effect of cycled lighting on premature infants in the Neonatal Intensive Care Unit (NICU), both clinical expertise and expertise in research methodology were required. The research study began with a clinical question and evidence-based lighting guideline, and evolved into a complex research study. The DNP-educated Clinical Nurse Specialist (CNS) in the NICU provided the clinical expertise and extensive knowledge about the unit and systems that were essential for the study to occur. Likewise, the nurse scientist designed a research study that included patient outcomes, but also explored the barriers and facilitators to implementing the lighting guideline across disciplines in the 45-bed NICU. Through this collaboration, developmentally appropriate lighting and a remarkable change in nursing practice could occur.
Similarly, the DNP-educated CNS of the Pediatric Intensive Care Unit (PICU) approached the nurse scientist with a clinical question regarding the relationship between sleep and delirium for children in the PICU. Together they designed a research study to investigate how delirium screening and a sleep promotion protocol in the PICU could be implemented and to add to the literature on delirium in the PICU. When the variables that influence adoption are understood, the evidence may be translated and put into practice.
While there are differences in the focus of the academic preparation, the PhD and DNP nurse leader share the common focus of improved patient, population, and/or policy outcomes (Melnyk, 2014). Both the DNP- and PhD-educated nurse can contribute to the implementation of best practices. This collaborative relationship allows patients to receive evidence-based care faster than if either leader was working individually.