03 · What You Need to Know
How to Build a Research Paradigm Justification That Actually Supports the Study
Definition and Justification Are Different Tasks
This distinction is the place to begin.
Suppose you write:
"Interpretivism assumes that social reality is understood through meanings and interpretations."
That is a description.
Now suppose you add:
"Because the study asks how faculty members understand responsible generative AI use across different disciplinary contexts, participants' interpretations are not treated as measurement error surrounding one predetermined definition. They constitute central evidence for answering the research question."
That begins to justify the paradigm.
Definition
What does this philosophical position generally assume?
Justification
Why do those assumptions make sense for this research question, methodology, evidence, and intended claims?
You usually need some definition. But definition alone does not establish fit.
Start With the Research Question, Not the Paradigm's Biography
A strong justification begins from what the study needs to know.
If your question asks whether an intervention changes an outcome, you need a philosophical and methodological framework capable of supporting empirical comparison and causal inference.
If your question asks how people interpret an experience, you need an account of why meanings and context constitute legitimate knowledge.
If your question asks what mechanisms generate an observed pattern, you need an account of causation that goes beyond description or association.
If your question concerns inequality and explicitly seeks to examine power and contribute to social change, values and marginalized knowledge may become central to the philosophical justification.
This is why the question of whether researchers should choose a paradigm before choosing their research methods does not have one universal chronological answer. Regardless of what came first during planning, the final justification should show how the pieces fit.
Identify Only the Assumptions That Matter
You do not necessarily need equal-length discussions of ontology, epistemology, axiology, methodology, and every related philosophical category.
Explain what materially affects your research.
An interpretivist study may emphasize contextual meaning, the relationship between researcher and participant, and interpretation.
A postpositivist study may emphasize an external reality, fallible measurement, critical testing, uncertainty, and provisional knowledge.
A pragmatic study may emphasize inquiry, purposes, action, methodological pluralism, and consequences.
A critical realist study may need to establish ontological realism, fallible knowledge, stratified reality, generative mechanisms, and contextual causation.
A transformative study may emphasize values, power, social justice, cultural responsiveness, marginalized knowledge, and the intended social consequences of inquiry.
The philosophy should be proportionate to what it needs to explain.
Then Make the Connection Explicit
Do not expect the reader to infer why a philosophical assumption matters.
If you state that knowledge is contextually situated, explain what that means for your methodology.
If you state that reality exists independently of the researcher but can be known only imperfectly, explain what that means for measurement, uncertainty, alternative explanations, or inference.
If you state that causal mechanisms may not be directly observable, explain how the analysis will reason from empirical evidence toward proposed mechanisms.
If you state that power shapes knowledge production, explain how that affects participation, sampling, researcher positioning, interpretation, or dissemination.
The connection is where philosophical vocabulary becomes methodological reasoning.
A Useful Justification Has a Simple Logical Structure
1. What does the study need to know? Identify the kind of knowledge implied by the research problem and question.
2. What philosophical assumption supports that knowledge? State the relevant assumption about reality, knowledge, values, causation, or inquiry.
3. Why does that assumption fit this phenomenon? Connect the philosophy directly to what is being investigated.
4. What methodological consequence follows? Show how the assumption influences methodology, evidence generation, analysis, researcher role, integration, or inference.
5. What does this allow and limit you to claim? Explain the kind of conclusion the philosophical and methodological framework can support.
If readers can follow those connections, they usually need far less generic philosophy.
Do Not Justify Positivism by Saying the Study Is Quantitative
This is one of the most common shortcuts.
"The study uses quantitative methods and therefore adopts positivism."
The conclusion does not automatically follow.
As discussed in the question of whether quantitative studies have to be positivist, quantitative methods can operate within postpositivist, pragmatic, critical realist, transformative, and other philosophical frameworks.
A stronger positivist or postpositivist justification would explain assumptions concerning external reality, empirical observation, measurement, objectivity, hypothesis testing, and the status of scientific knowledge.
Then show how those assumptions fit your particular study.
Do Not Justify Interpretivism by Saying the Study Is Qualitative
The reverse shortcut is equally weak.
"The study is qualitative; therefore, it adopts interpretivism."
Qualitative research does not have to be interpretivist or constructivist.
A defensible interpretivist justification explains why understanding people's interpretations is necessary for answering the question, why context matters, how the researcher participates in interpretation, and why the selected methodology can generate the required contextual knowledge.
Now the paradigm follows from the research logic rather than from the presence of interview transcripts.
Do Not Justify Pragmatism by Saying "Whatever Works"
This phrase is tempting because it seems to solve the philosophical problem in three words.
It usually creates another one: what does "works" mean?
Pragmatism is a philosophical tradition concerned with inquiry, experience, action, beliefs, purposes, and consequences. Morgan argues specifically against reducing its methodological value to simplistic practical convenience.
A stronger justification explains why the study is organized around a research problem, what different forms of evidence contribute to inquiry, and what consequences follow from the knowledge produced.
If the study is mixed methods, explain why integration is needed rather than assuming that mixed methods automatically requires pragmatism.
Do Not Justify Critical Realism by Saying You Want a "Deeper Understanding"
Almost every researcher would prefer deeper understanding to shallower understanding.
That does not establish critical realism.
A critical realist justification should explain why observable events are insufficient for the explanatory task, why underlying structures or generative mechanisms matter, how context conditions their operation, and how the methodology can develop or evaluate those explanations.
If your analysis only summarizes participants' experiences, invoking mechanisms does not make the study critical realist.
If your regression identifies predictors and you simply rename those predictors "mechanisms," the philosophical justification remains incomplete.
Do Not Justify a Transformative Paradigm Only From the Topic
A study of marginalized students is not automatically transformative.
A study of inequality is not automatically critical.
A transformative paradigm should be justified through its substantive commitments to power, social justice, human rights, cultural responsiveness, marginalized perspectives, and social consequences.
Show how those commitments influence the study.
Who helped define the problem? Whose knowledge is prioritized? How are power differences addressed? How are categories examined? What does the study seek to change or make possible?
The socially important topic provides context. The research logic provides the paradigm justification.
Use the Paradigm to Explain Methodological Decisions
A particularly effective strategy is to connect philosophy with concrete decisions readers will encounter later.
| Philosophical assumption |
Possible methodological consequence |
| Meanings are contextually situated. |
Data generation preserves participants' contextual accounts rather than restricting them entirely to predetermined categories. |
| Knowledge is fallible and provisional. |
Analysis emphasizes uncertainty, alternative explanations, robustness, and appropriately qualified conclusions. |
| Reality contains mechanisms not directly observable. |
Analysis moves beyond observed patterns toward theoretically and empirically supported generative explanations. |
| Research is inquiry oriented toward consequences. |
Methods are justified according to the contributions they make to resolving the research problem. |
| Power affects knowledge production. |
Sampling, participation, positionality, interpretation, and dissemination explicitly address power and representation. |
This is considerably more persuasive than a paragraph of abstract definitions followed by an unrelated methods section.
Justify the Paradigm Against the Most Plausible Alternative, if Necessary
You usually do not need to compare every major paradigm.
Sometimes, however, one contrast strengthens the argument.
Suppose your study examines why an intervention produces different outcomes across institutions. You might briefly explain why postpositivist effect estimation alone does not address the mechanism-based explanatory question and why critical realism provides concepts better suited to examining mechanisms and context.
Or perhaps you choose a transformative rather than merely pragmatic mixed-methods framework because power and inequity are not peripheral consequences but explicit organizing concerns of the inquiry.
A focused contrast can clarify what the chosen paradigm contributes.
A seven-paradigm literature review usually cannot.
Cite the Philosophy You Actually Use
Paradigm justifications often rely entirely on one general research-methods textbook.
Textbooks are useful for orientation. They may not be sufficient when the philosophical position is central, contested, or methodologically consequential.
If you use pragmatism, engage credible scholarship on pragmatism in research. If you use critical realism, cite critical realist methodological literature. If you use transformative inquiry, engage Mertens and relevant transformative scholarship. If your methodology rests on a particular interpretive or constructivist tradition, cite scholarship representing that tradition.
This helps prevent a common problem in which a paradigm is defined through a simplified secondary summary that specialists within the tradition would barely recognize.
You Do Not Need to Prove That Your Paradigm Is the Best Paradigm
A justification is not a competition.
You do not need to establish that interpretivism is superior to positivism, pragmatism superior to critical realism, or your chosen philosophy the final answer to social science.
You need to establish fit.
The argument is:
"Given this research problem, this question, this understanding of evidence, and these intended claims, these philosophical assumptions provide a coherent foundation for the inquiry."
That is enough.
Paradigm Justification Should Reach the Analysis
Researchers often justify the paradigm convincingly and then forget it during analysis.
If you claim postpositivism, does the analysis acknowledge uncertainty and competing explanations?
If you claim interpretivism, does the analysis actually interpret contextual meanings?
If you claim critical realism, does the reasoning distinguish observed evidence from proposed mechanisms?
If you claim pragmatism, does integration address the problem the inquiry was designed to resolve?
If you claim a transformative paradigm, are power and marginalized perspectives visible in interpretation?
This is the practical meaning of paradigm-methodology alignment.
Paradigm Justification Should Reach the Conclusions Too
Philosophical assumptions also constrain what you can claim.
A postpositivist study should be cautious about language of final proof.
An interpretive study should not casually transform contextual findings into universal population claims.
A critical realist study should distinguish an empirically supported proposed mechanism from a directly observed fact.
A transformative study should not claim to have "empowered" participants simply because they were interviewed.
Your conclusion is one of the places where the paradigm becomes most visible because it reveals what you believe the evidence allows you to know.
You Can Often Justify a Paradigm in Surprisingly Little Space
A focused justification can be concise because it does not need to explain everything about the philosophy.
For example:
Illustrative Structure
Position: This study adopts an interpretivist orientation because the research seeks to understand how university teachers make sense of responsible generative AI use rather than treating responsible use as a single predetermined construct.
Assumption: Teachers' interpretations are understood as contextually situated within disciplinary practices, assessment purposes, institutional policies, and professional identities.
Methodological consequence: Semi-structured interviews therefore provide participants with scope to articulate these meanings, while analysis examines patterns and differences in interpretation across contexts.
Researcher consequence: Because interpretation is involved in both data generation and analysis, the researcher's position and assumptions are addressed reflexively rather than treated as completely external to knowledge production.
Inferential consequence: Findings are intended to provide contextual understanding of how responsible AI use is interpreted rather than statistical estimates of how frequently particular interpretations occur in the wider faculty population.
That paragraph sequence does more methodological work than several pages defining paradigms without connecting them to the study.
But Do Not Copy a Generic Paradigm Paragraph
The example above works only because every sentence is connected to a particular research question.
Generic templates can become problematic when researchers insert a different topic into the same philosophical paragraph without reconsidering the logic.
"This study adopts interpretivism because reality is socially constructed" is not automatically appropriate for every interview study.
"This study adopts postpositivism because knowledge is provisional" is not enough for every statistical study.
"This study adopts pragmatism because it uses both quantitative and qualitative methods" remains weak no matter how elegantly it is formatted.
Your justification should be specific enough that replacing your research topic with an unrelated one would make the paragraph stop working.
How Much Justification Is Enough?
The answer follows the same proportionality principle discussed in how much research philosophy researchers actually need to explain.
A familiar paradigm used conventionally may require a concise justification.
An unusual paradigm-method combination may require more.
A philosophically pluralist study may need substantially more because relationships among perspectives must be explained.
A dissertation may require greater explicitness than a journal article because the candidate is also demonstrating methodological understanding.
If the philosophical framework itself is part of the scholarly contribution, extensive argument may be warranted.
There is no universal word count.
A Good Editing Rule: Replace "This Paradigm Believes" With "For This Study"
When revising your philosophy section, look for paragraphs that spend most of their time describing what a paradigm supposedly believes.
Then ask whether you can move more quickly toward:
"For this study, this means..."
"This assumption is relevant because..."
"Consequently, the methodology..."
"This affects interpretation by..."
"The resulting claims are therefore limited to..."
Those sentences force the philosophical discussion back toward the research.
Watch Out
A paradigm justification becomes weak when the reader learns a great deal about the paradigm but almost nothing about why your study needs it. The relevant question is not how much philosophy you can explain, but how clearly the philosophy explains your research.
