Evaluating Levels of Evidence in Nursing Research

 

 

 


As future Nurse Practitioners (NPs), you will frequently rely on evidence-based practice (EBP) to inform clinical decisions, improve patient outcomes, and advance healthcare delivery. This assignment focuses on developing skills in critically appraising research literature by creating an "evidence grid" (also known as an evidence table or synthesis grid). An evidence grid is a structured tool that organizes key information from multiple studies, allowing for quick comparison and evaluation of evidence quality.
You will select a review paper (e.g., a systematic review or meta-analysis) or a professional clinical guideline relevant to NP practice. From this source, identify and analyze 10 cited research articles. For each article, evaluate its level of evidence using a standardized hierarchy, and compile your findings into a clear, tabular format. This exercise will enhance your ability to discern high-quality evidence, identify gaps in the literature, and apply EBP principles.
Due Date: [Insert date, e.g., Two weeks from assignment distribution] Submission Format: Submit as a Word document APA 7th edition style Include the evidence grid, a brief introduction (1–2 paragraphs), and a reference list in APA 7th edition format. Length: Evidence grid should cover 10 articles; total document up to 5 pages (excluding references). Grading: 100 points total.
Learning Objectives
By completing this assignment, you will be able to:
1. Locate and select a high-quality review paper or professional guideline in a topic area relevant to NP practice.
2. Identify and extract key research articles from the source.
3. Apply an evidence hierarchy to evaluate the level and quality of evidence in each article.
4. Organize findings into a professional evidence grid for synthesis and comparison.
5. Reflect on how the evaluated evidence could inform NP clinical decision-making.
Instructions
Step 1: Select Your Source Document
• Choose one review paper or professional guideline published within the last 5 years (2020–2025) that is relevant to NP practice. Examples of topics include chronic disease management (e.g., diabetes, hypertension), preventive care, mental health, or palliative care. 
o Review Paper Options: Systematic reviews or meta-analyses from sources like Cochrane Database, PubMed, or Joanna Briggs Institute.
o Guideline Options: Clinical practice guidelines from organizations like the American Heart Association (AHA), American Diabetes Association (ADA), U.S. Preventive Services Task Force (USPSTF), or Agency for Healthcare Research and Quality (AHRQ).
• Ensure the source cites at least 10 primary research articles (e.g., RCTs, cohort studies) that you can access via your university library or open-access platforms

 

 

Your final submission must follow APA 7th edition formatting and include the following sections:

 

1. Title Page (Required APA Formatting)

 

Title of the paper

Your Name

Course Name

Instructor Name

Institution

Due Date

 

2. Introduction (1–2 Paragraphs)

 

The introduction should clearly state the purpose of the paper and introduce your chosen source document.

Purpose: State the importance of EBP for NPs and the goal of the assignment (to critically appraise evidence using an evidence grid).

Source: Identify the specific source document you chose (e.g., "The systematic review, 'Effectiveness of Telehealth Interventions for Managing Type 2 Diabetes,' published in [Journal Name] (2023), serves as the foundation for this analysis.")

Topic Relevance: Briefly explain why this topic is relevant to NP clinical decision-making.

 

3. Evidence Grid (The Main Body)

 

Insert your completed Evidence Grid table, ensuring the Level of Evidence used is consistent (e.g., using the I-VII scale provided above).

Ensure that the "Key Findings" and "Gaps/Limitations" are directly relevant to NP clinical practice.

 

4. Conclusion and Clinical Reflection

 

This section should provide a brief synthesis and reflection (1–2 paragraphs).

Synthesis: Summarize the overall level and strength of the evidence found across the 10 articles (e.g., "The evidence base was dominated by Level IV cohort studies, suggesting a need for more high-level RCTs...").

NP Clinical Reflection: Reflect on how this body of evidence will inform your practice as an NP.

Example: If the evidence for a new drug is Level II (RCTs), your reflection might state: "The strong evidence from multiple RCTs (Level II) provides a sound basis for integrating this drug into patient care protocols for [disease]..."

Sample Answer

 

 

 

 

 

 

 

 

Evidence Grid Assignment Guide and Template

 

The "Evidence Grid" (or Evidence Table) is a synthesis tool that organizes research findings. For this assignment, you will need to standardize the Level of Evidence for each of the 10 articles. The following is a common hierarchy used in Evidence-Based Practice (EBP), often adapted from models like Melnyk & Fineout-Overholt's or the Oxford Centre for EBM.

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