Saunders Research Onion: A Clear and Simple Guide

The Saunders Research Onion is a widely used framework that helps students and researchers design and structure their research methodology. It is especially popular in business, management, and social science research, as it breaks the research process into clear, logical layers.

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This guide explains what the Saunders Research Onion is, each of its layers, and how to use it correctly in academic research.

🧅 What Is the Saunders Research Onion?

The Saunders Research Onion is a methodological model developed by Mark Saunders and colleagues in the book Research Methods for Business Students. It presents research design as a series of layers, much like the layers of an onion.

Each layer represents a key decision that must be made when planning a research project. By working from the outside layer to the centre, researchers can build a well-structured and justified methodology.

🧠 Why Is the Saunders Research Onion Used?

The model is used because it:

• Provides a clear structure for research design
• Helps justify methodological choices
• Is easy to explain in dissertations and research proposals
• Works across qualitative, quantitative, and mixed-methods research

It is commonly referenced in undergraduate, postgraduate, and doctoral research.

🧅 The Six Layers of the Saunders Research Onion

1️⃣ Research Philosophy

This outer layer defines how you view knowledge and reality.

Common philosophies include:

• Positivism – objective, measurable reality
• Interpretivism – subjective meanings and experiences
• Pragmatism – practical solutions focused on outcomes
• Realism – reality exists but is interpreted through perception

Your philosophy influences all later decisions.

2️⃣ Research Approach

This layer explains how theory is used in your research.

• Deductive approach – testing existing theory
• Inductive approach – developing new theory from data
• Abductive approach – moving between data and theory

The approach should align with your research philosophy.

3️⃣ Methodological Choice

This layer focuses on how data will be collected and analysed.

• Quantitative – numerical data and statistics
• Qualitative – non-numerical data such as interviews
• Mixed methods – combination of both

The choice depends on the research question and objectives.

4️⃣ Research Strategy

This layer defines the overall research plan.

Common strategies include:

• Case study
• Survey
• Experiment
• Action research
• Ethnography
• Grounded theory

Your strategy explains how the research will be carried out.

5️⃣ Time Horizon

This layer describes the timeframe of the study.

• Cross-sectional – data collected at one point in time
• Longitudinal – data collected over an extended period

Most student research projects are cross-sectional.

6️⃣ Techniques and Procedures

The innermost layer covers the practical details.

This includes:

• Data collection methods
• Sampling techniques
• Data analysis methods
• Ethical considerations

This is where the research is actually implemented.

📚 How to Use the Saunders Research Onion in Assignments

When writing a methodology section:

• Start with research philosophy
• Justify each layer clearly
• Ensure all choices align logically
• Reference Saunders et al. where appropriate

Using the onion helps demonstrate methodological awareness, which is highly valued in academic marking.

⚠️ Common Mistakes to Avoid

• Mixing philosophies that conflict
• Failing to justify choices
• Treating the onion as a checklist rather than a framework
• Skipping layers or explaining them poorly

Clarity and consistency are key.

🧩 Final Thoughts

The Saunders Research Onion is a powerful tool for structuring research methodology. By carefully working through each layer, researchers can create a clear, coherent, and well-justified research design.

When used properly, it strengthens both the quality and credibility of academic research.