Evidence-Based Practice in Nursing: The Process, the Models and the Paper

Evidence-based practice (EBP) is the integration of the best available research evidence with clinical expertise and patient preferences and values to make decisions about care.

It is the foundation of modern nursing, and it runs through nursing education from BSN research courses to DNP projects. Most nursing students will write at least one EBP paper, and many will lead an EBP project in practice.

This guide explains the steps of EBP, how to ask a focused clinical question, how to find and appraise evidence, which models structure EBP work, how changes are implemented and evaluated, and how to write an EBP paper that markers reward.

The Steps of EBP

These steps follow the widely taught model described by Melnyk and Fineout-Overholt.

Asking a PICOT Question

PICOT stands for Population, Intervention (or issue), Comparison, Outcome and Time. It turns a broad concern into a searchable, answerable question.

See our PICOT question guide for question types and more examples.

Levels and Hierarchies of Evidence

This seven-level hierarchy is common in nursing education; the Johns Hopkins model uses five levels with separate quality ratings. Use the hierarchy your course teaches, and remember that the best design depends on the question: qualitative studies are the right evidence for questions about patient experience.

Searching for Evidence

• Use CINAHL, PubMed/MEDLINE and the Cochrane Library, plus guideline sources such as professional organizations and national guideline bodies.
• Build search strings from PICOT terms with synonyms, subject headings and Boolean operators.
• Limit by date (often the last five years), language, and peer review as appropriate.
• Record databases, terms, limits and numbers of results so the search can be described in the paper.

Critical Appraisal

Appraisal judges whether a study's findings are trustworthy and applicable. Use a recognized tool rather than general impressions.

Present appraisal in an evidence table: author and year, purpose, design, sample, intervention, outcomes, results, level, quality and relevance to your question.

Example Evidence Table Rows

EBP Models

Patient Preferences and Clinical Expertise

EBP papers often focus so heavily on research that they neglect the other two components. Explain how patient preferences shape the recommendation, for example whether patients find a dressing comfortable or whether a proposed intervention fits their cultural values, and how clinical expertise informs it, such as nurses' judgment about which patients are at highest risk.

Shared decision-making tools and patient education materials can show how preferences will be built into the change.

Implementation and Evaluation

Evidence only improves care if it changes practice. An implementation plan describes stakeholders, staff education, resources, workflow changes, barriers and facilitators, and how the change will be sustained.

Change models such as Lewin's three stages, Kotter's eight steps or Rogers' diffusion of innovations help structure it. The evaluation plan names outcome measures (for example, pressure injury incidence), process measures (adherence to dressing protocol) and the timeline for data collection and analysis.

Barriers to EBP and Strategies

Many EBP assignments ask you to discuss barriers and facilitators. Tie them to your specific setting rather than listing general ones.

How to Write an EBP Paper

1. Introduction and problem: clinical significance, local data, consequences.
2. PICOT question.
3. Search strategy: databases, terms, limits, results, inclusion criteria.
4. Appraisal and synthesis: what the evidence shows, its level and quality, and its consistency.
5. Recommendation: the practice change supported by the evidence, considering patient preferences and clinical expertise.
6. Implementation plan: model, steps, stakeholders, barriers.
7. Evaluation plan: outcomes, measures, timeline.
8. Conclusion and implications for nursing practice.

Synthesizing Evidence Well

Example EBP Topics

Disseminating EBP Findings

Sharing results is the final step of EBP and part of many assignments. Options include presenting at a unit meeting or grand rounds, a poster at a nursing conference, an article in a professional journal or newsletter, and updating a policy or protocol.

Tailor the message to the audience: frontline nurses want practical steps, managers want outcomes and costs, and conference audiences want methods and results.

Common Mistakes

• A PICOT question that is too broad or missing elements.
• Relying on websites, textbooks or old sources.
• Summarizing articles one by one instead of synthesizing.
• Not stating the level and quality of each source.
• Recommendations not supported by the evidence presented.
• Ignoring patient preferences and clinical expertise.
• No implementation or evaluation plan.

How We Help

Send your topic or PICOT question, rubric, program template and deadline. A nurse writer searches the evidence, appraises and tabulates it, synthesizes the findings, and writes the recommendation, implementation and evaluation sections in APA 7th edition. Revisions within the scope of your original request are free.

EBP, Quality Improvement and Research

Students are often asked to distinguish these three, and many projects combine them. Research generates new knowledge through systematic investigation and usually needs full ethics review. Evidence-based practice applies existing knowledge, along with clinical expertise and patient preferences, to practice decisions.

Quality improvement uses systematic, data-driven methods, such as PDSA cycles, to improve processes and outcomes in a specific setting. An EBP project often uses QI methods to implement and evaluate the change it recommends.

Writing Tips for EBP Papers

Keep the PICOT question visible throughout: refer back to it when you present the search, the evidence, the recommendation and the evaluation, so the paper reads as one argument. Use headings that follow your rubric, present evidence in tables and discuss it in prose, and state the level and quality of each source when you rely on it.

Write recommendations as specific nursing actions in your setting, not general statements. Finally, check APA formatting carefully, since EBP rubrics in nursing programs usually reserve marks for scholarly presentation.