Decoding the 'Why' in PhD Research Methodology: Turning decisions into a coherent story
If you’re writing a qualitative PhD methodology chapter, you’ve probably had the experience of stepping back from a draft and thinking: This feels… fine. But also slightly flat.
You list what you did.
You explain your sampling.
You describe your interviews.
You outline your analytic approach.
On paper, everything is there. And yet something still feels missing.
That “something” is usually the ‘why’.
Most qualitative PhD researchers are very good at explaining what they did.
Examiners are scanning your pages for the ‘why’.
And that’s what turns a technically competent methodology chapter into a convincing doctoral one.
The ‘why’ is what makes your study coherent
When we talk about the ‘why’, we’re not talking about padding or justification for the sake of it.
We’re talking about alignment.
Why semi-structured interviews rather than focus groups?
Why this group of participants?
Why this size of sample?
Why reflexive thematic analysis rather than content analysis or IPA?
If your answers are simply “because that’s common” or “because that’s what other people do,” the chapter will feel procedural.
However, if your answers clearly connect back to your research questions and conceptual framing, your methodology suddenly reads as intentional.
For qualitative researchers especially, methods are never neutral. They reflect assumptions about meaning, knowledge, context and interpretation. When you explain your reasoning, you make those assumptions visible. That’s what examiners are looking for.
“For qualitative researchers especially, methods are never neutral.”
Let the reader see your thinking
Examiners don’t expect perfection.
They expect judgement.
When you explain the ‘why’, you let them see that you made decisions deliberately.
For example:
If your study explores lived experience, depth matters.
If your question is about meaning-making, your methods need flexibility.
If you’re working within a particular theoretical tradition, your analytic approach needs to reflect it.
These are signals of intellectual maturity.
When you articulate your reasoning, your chapter stops sounding like a recipe and starts sounding like scholarship.
The power of the ‘why not’
Strong methodology chapters don’t just explain what you chose. They show that you considered alternatives.
Not every possible alternative - but the obvious ones.
Why interviews and not surveys?
Why individual interviews and not focus groups?
Why a qualitative design rather than a mixed methods approach?
You don’t need to defend yourself against imaginary critics. But briefly acknowledging key alternatives - and explaining why they weren’t appropriate - shows that your design is thoughtful rather than accidental.
For qualitative PhD students, this often means naming trade-offs.
Depth over breadth.
Contextual richness over generalisability.
Flexibility over standardisation.
When you acknowledge those trade-offs, you strengthen your chapter.
Questions that help you articulate the ‘why’
If you’re stuck, try asking yourself:
How does this sampling strategy help me answer my research question?
Why is this sample size appropriate for the depth of analysis I’m doing?
How do my data collection and analysis methods reflect my theoretical stance?
How do my ethical decisions emerge from the nature of my topic?
Notice how each question brings you back to alignment.
That’s the thread you’re trying to make visible.
From procedure to narrative
The difference between an average methodology chapter and a strong one isn’t complexity.
It’s clarity.
Clarity about what you’re trying to understand, how your design allows you to understand it, and why those decisions make sense together.
When the ‘why’ is present, your chapter feels like a coherent research story. Without it, it can feel like a technical report.
If you’re currently drafting and finding that your chapter reads more like documentation than argument, you’re not getting anything “wrong”. Making the reasoning visible is one of the most conceptually demanding parts of a qualitative PhD.
“The ‘why’ is the soul of your methodology chapter. It breathes life into your design decisions and reveals the reasoning that holds your study together.”
Beyond the ‘what’ to the ‘why’
As qualitative PhD researchers, we need to move beyond describing what we did.
The ‘why’ is the soul of your methodology chapter. It breathes life into your design decisions and reveals the reasoning that holds your study together.
If your chapter currently reads like a list of steps rather than a structured argument, that’s a sign you need to strengthen the alignment between aims, paradigm leanings, methods, and analysis.
Does this feel bigger than just your methodology chapter?
If you've been reading this thinking, "This isn't just my methodology... this seems to happen throughout my PhD," you're probably right.
In the same way that there isn't one "correct" methodology, there isn't one correct literature review, interpretation of your data, or conclusion either.
When it comes to doing these things, you'll gradually have to learn to trust your own judgement, justify your decisions, and tolerate uncertainty in ways you've probably never had to before.
Thing is…
No one really tells you this.
They're all part of what I call the hidden curriculum of qualitative PhD research.
I wrote a short book about this because I wanted to explain the unwritten lessons that so many brilliant qualitative researchers end up learning the hard way - and reassure them that feeling stretched by these experiences is often a sign they're developing as researchers, not failing as students.
→ Learn more about The Hidden Curriculum of Qualitative PhD Research
Ready to make your methodology read like scholarship rather than a technical report?
If your methodology chapter still feels like a description of what you did rather than an explanation of why it all makes sense, my Data to Analysis PhD Survival Guide picks up where this article leaves off.
It will help you explain and defend your methodological decisions with confidence, connect your methods to your research questions and conceptual foundations, and develop the kind of coherent academic argument that examiners are looking for.
Instead of writing, "This is what I did," you'll be able to show, "This is why this was the right approach for answering my research question."
