How to be more critical in a thematic literature review - a guide for qualitative researchers
Being more critical in a thematic literature review is something many qualitative PhD researchers are told to do - but rarely shown how to apply this in practice.
It’s one of the most common pieces of feedback: “You need to be more critical.”
However, it often arrives without much explanation. No clear indication of what’s missing. No example of what “more critical” would actually look like on the page.
So, you’re left trying to interpret it. Does it mean disagreeing more? Questioning everything? Writing in a more assertive tone?
Not quite. In qualitative research, criticality is something more grounded - and, once you see it clearly, it’s far more manageable than it first appears.
Moving beyond summary
Most people arrive at this stage with a solid ability to summarise literature. You can read a paper, understand its argument, and explain it clearly.
That’s an important skill - and it doesn’t disappear when you move into doctoral work, but a thematic literature review asks something more of you.
It asks you to move from:
“What does this study say?”
to:
“What happens when these studies are placed alongside one another?”
This is where criticality begins to emerge. Not in isolated comments on individual papers, but in the relationships you start to notice across a body of work.
What criticality actually looks like
In practice, being critical means that you are actively working with the literature.
You are noticing patterns in how topics are approached, recognising where studies align (and diverge), paying attention to what is emphasised, and what is less visible.
Over time, you begin to see that the literature is not one unified voice. It is a conversation.
Your role is not simply to report on that conversation, but to make sense of it in relation to your research. This is why thematic literature reviews are so powerful in qualitative work.
They allow you to organise that conversation into meaningful groupings - themes that reflect how knowledge in your area has been constructed, debated, and developed.
Why this can feel difficult
This is also the point where many qualitative PhD researchers start to feel less certain because engaging critically can feel like stepping into unfamiliar territory.
You might find yourself hesitating:
“This author is well known - can I really question this?”
“What if I’ve misunderstood something?”
“Am I allowed to say this doesn’t quite fit?”
These are very normal responses, but criticality is not about positioning yourself above the literature - it’s about positioning yourself within it.
You are not dismissing previous work. You are engaging with it - thoughtfully, carefully, and with a clear sense of what matters for your study.
Reading with a different kind of attention
One of the most effective shifts you can make is not to read more, but to read differently.
Instead of approaching each paper as something to absorb, you begin to approach it as something to work with.
You might start to notice that several studies use the same concept, but define it in slightly different ways. Or that a particular perspective dominates the literature, while others are less visible.
You might see that findings appear consistent on the surface, but are built on very different assumptions.
These are not details to gloss over, they are the beginnings of your analysis.
From notes to interpretation
This change in reading naturally carries through into how you take notes.
At first, it’s tempting to record what each study says - its aims, its findings, its conclusions.
But criticality develops when you begin to add another layer:
What do you make of this?
How does it relate to your research? How does it connect with other studies you’ve read? What does it help you understand - and what remains unclear?
These reflections don’t need to be polished. They just need to be honest because over time, they start to build into something more structured. You begin to see clusters of ideas, recurring tensions, and gaps that feel significant.
From there, your themes start to take shape.
Criticality as connection
It’s also worth reframing what “being critical” means.
It is not about picking apart individual studies or highlighting flaws for the sake of it - it is about making connections.
In a thematic literature review, this means drawing together a body of work in a way that reveals something more than any single study could offer.
That might involve showing where research converges, where it diverges, and where important areas remain underexplored.
Through that process, you are not just demonstrating knowledge, you are building an argument.
Letting your voice emerge
As this develops, your own voice becomes more visible in the writing - in how you guide the reader through the literature, in the choices you make about what to emphasise, and in a way you frame your themes.
You move from reporting to shaping - that transition takes time.
It often becomes clearer through revision, through returning to your work and refining how your ideas are expressed.
If you’re finding it difficult to “be more critical,” it doesn’t mean you’re doing something wrong. It usually means your thinking is starting to deepen and that can feel uncertain before it feels clear.
A strong thematic literature review is not the one that sounds the most authoritative. It’s the one where the relationships between ideas are clear, and where your research is positioned thoughtfully within that landscape.
If you want more structured support with this
If you understand what criticality involves, but you’re not entirely sure how to translate that into a clear, well-structured thematic literature review, that’s a very common stage in a qualitative PhD.
My Literature Review PhD Survival Guide walks you through how to build that structure - how to move from reading and note-taking into themes, arguments, and a coherent chapter.
It’s not a shortcut. It’s a way of working through the process with more clarity. It’s here when you need it.
