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GuidePublished 16 Aug 202611 min readBy KEVOS Editorialmethodological pyramidresearch methods hierarchyphilosophy methodology methodsresearch design tiers
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KEVOS/Project Delivery/Research Projects/Introduction to Research Methods
Project DeliveryResearch ProjectsCoreResearch Philosophy

The Methodological Pyramid

Thirty-five labels arranged in three tiers. Read properly it is the fastest structural check available on a research design; read carelessly it becomes a menu, which is precisely what it is not.

Reading time12 minutes
LevelCore
Topic streamResearch Philosophy
Source materialIntroduction to Research Methods
Updated2026-08-16

In brief

  • The pyramid is a three-tier figure: fundamental philosophies at the base, research methodologies in the middle, data collection methods at the apex.
  • The source's reading is directional. Philosophy sits underneath everything; methodology sits on philosophy; methods sit on methodology.
  • It names 13 data collection methods, 14 methodologies and 8 philosophies — 35 labels in total.
  • Almost all of those labels are labels only. The supplied source defines a small minority of them and says nothing about the rest.
  • The figure's own methodology tier and the source's methodology table share only two labels between them, which tells you neither list is exhaustive.

What the figure sets out

The methodological pyramid is a triangle divided into three horizontal tiers, narrow at the top and wide at the base. Beside each tier the figure carries two columns of labels naming the options that belong to that tier. It is attributed in the supplied teaching source to a first-edition business research methods text, cited in the references below.

The geometry is doing the argument. The base is the widest tier because philosophical position underpins everything above it, and the apex is the narrowest because a data collection method is the most specific and most constrained choice you make.

  1. Fundamental philosophies
  2. Research methodologies
  3. Data collection methods
3tiers in the figure
8fundamental philosophies named at the base
14research methodologies named in the middle tier
13data collection methods named at the apex
From the source

How the source reads its own figure

Philosophy sits underneath everything; methodology sits on top of philosophy; methods sit on top of methodology. Epistemological and ontological assumptions are embedded in the theoretical perspective, which is embedded in the methodology used in the study.

That sentence is the whole interpretive key. Every practical use of the pyramid below is an application of it.

The base tier: eight fundamental philosophies

The base tier names the philosophical frameworks a study can be situated within. Four appear in the figure's left column and four in its right. The source treats several of these elsewhere and leaves the others entirely alone.

TIER 3 — FUNDAMENTAL PHILOSOPHIES, AS LABELLED ON THE FIGURE

Philosophy on the base tierWhere else it appears in the supplied sourceStatus
PositivismDefined in the source's table of epistemological terminology under the heading “Positivist”Defined
ConstructionismThe source's prose names constructionism; its table uses “Constructivist” and defines thatDefined under a different spelling
InterpretivismDefined in the same table under the heading “Interpretive”Defined
FunctionalismNamed in the prose as one of the other philosophical frameworks used in social science researchLabel only
Critical theoryThe prose and the table treat “critical inquiry”; critical theory is not separately addressedLabel only
FeminismNamed in the prose list of other philosophical frameworksLabel only
Post structuralismDoes not appear anywhere else in the supplied sourceLabel only
Post modernismNamed in the prose as postmodernism, in the same list of other frameworksLabel only

Spellings are the figure's. The naming drift between constructionism and constructivism is discussed under source gaps below.

Whichever framework you are working within, it carries assumptions about what exists and about how knowledge of it can be created. Those two questions have their own pages: ontology for assumptions about the nature of being, and epistemology for how knowledge is made and justified.

The middle tier: fourteen research methodologies

The middle tier names strategies for carrying out a study — the design, in the source's own terms, rather than the instruments. Seven labels sit in each column.

TIER 2 — RESEARCH METHODOLOGIES, AS LABELLED ON THE FIGURE

Methodology on the middle tierDefined in the source's methodology table?Type given by the source
SurveyLabel only—
Case studyLabel only—
Experimental designYes, as “Experimental”Quantitative
EthnographyLabel only — it appears elsewhere only as an associated term of “Interpretive”—
Action researchYes, as “Action”Qualitative
Grounded theoryLabel only—
Content analysisLabel only—
Discourse analysisLabel only—
Documentary analysisLabel only—
Textual analysisLabel only—
SemioticsLabel only—
Image-based researchLabel only—
Archival researchLabel only—
Feminist researchLabel only — “feminist” appears in the source's short list of other methodologies—

The seven methodologies the source does define are set out on the research methodologies overview; only two of them are named on this tier.

The apex: thirteen data collection methods

The apex names the instruments — the ways data is actually gathered. Six labels sit in the left column and seven in the right. The supplied source defines none of them individually.

Practice note

The grouping in the next column is ours

The figure lists the thirteen labels in two columns and assigns them no meaning beyond that. The groupings below are our reading, offered so the list can be scanned rather than merely recited. The source neither proposes nor endorses them.

TIER 1 — DATA COLLECTION METHODS, AS LABELLED ON THE FIGURE

Method at the apexGrouping (this site's reading)Defined in the supplied source?
ObservationWatching and recordingLabel only
QuestionnairesAsking directlyLabel only
InterviewsAsking directlyLabel only
Focus groupsAsking directly, in groupsLabel only
ScalesAsking directly, structuredLabel only
Projective techniquesAsking indirectlyLabel only
VignettesAsking indirectlyLabel only
Life historyAccounts produced by participantsLabel only
NarrativeAccounts produced by participantsLabel only
DiariesAccounts produced by participantsLabel only
ImagesMaterial generated or foundLabel only
Documents/Records/ArchivesExisting materialLabel only
Internet researchExisting materialLabel only

The source's only substantive statement about this tier is that, in a research project, data constitutes evidence. See data collection methods for the full extent of what it says.

What the pyramid does not tell you

Source gap

Thirty-five labels, a handful of definitions

This is the central limitation of the figure as supplied, and it must not be smoothed over.

  • The pyramid names 13 data collection methods, 14 research methodologies and 8 fundamental philosophies as labels only.
  • The supplied source defines only some of them, and it does so in other tables rather than in the figure: five epistemological terms, and seven methodologies of which only two also appear on the figure.
  • For labels such as semiotics, grounded theory, projective techniques, vignettes and post structuralism, the supplied source provides no definition at all. Nothing on this site invents one.
  • The figure also gives no guidance on which philosophy pairs with which methodology, or which method suits which methodology. The tiers are ordered, but the pairings are left to you.

There is a second, easily missed gap. The figure's methodology tier and the source's own methodology table are largely different lists, and each contains labels the other omits.

On the pyramid, undefined in the source's methodology table

  • Survey
  • Case study
  • Ethnography
  • Grounded theory
  • Content analysis
  • Discourse analysis
  • Documentary analysis
  • Textual analysis
  • Semiotics
  • Image-based research
  • Archival research
  • Feminist research

Defined in the source's methodology table, absent from the pyramid

  • Historical
  • Comparative
  • Descriptive
  • Correlation
  • Evaluation

Only two labels appear in both: experimental design and action research. Two supplied lists of methodologies overlapping on two entries is a useful corrective — neither list is a closed set, and a methodology missing from the figure is not thereby disqualified. The consolidated view is set out in the methodology catalogue.

Using the pyramid on live work

The figure earns its place because it makes one class of error visible: choosing an instrument before you have a design, and a design before you have a position. Direction of travel depends on whether you are building or auditing.

Which way to climb

IfYou are designing your own study
ThenWork from the base upwards. Name the philosophical framework you are working within, choose a methodology consistent with it, then choose methods the methodology can carry.
IfYou are reading someone else's report or proposal
ThenWork from the apex downwards. Note the methods used, ask what methodology they imply, then ask what philosophy that methodology assumes. A report that cannot answer the third question is asserting rather than evidencing.
IfA method feels wrong for your question but you cannot say why
ThenLook one tier down. Apex-level discomfort is usually a middle-tier problem: the instrument is fine and the design it is serving is not.
IfTwo methods at the apex point to different tiers below
ThenThat is a mixed design, and it needs to be an explicit choice with a stated rationale rather than an accident of convenience.
IfThe label you need is not on the figure
ThenUse it anyway if it fits, and define it from a cited work. The figure is not exhaustive — the source's own methodology table lists five methodologies it omits.

The discipline of keeping the tiers aligned has its own page: methodological coherence sets out the source's requirement that every step fit the nature, aim, population and context of the study.

Four ways the figure gets misread

Caution

None of these are subtle, and all of them are common

Each misreading turns a structural argument into a shopping list.

  • Reading it as a maturity model, in which higher tiers are more advanced. The tiers are layers of a single design, not levels of achievement. A study is not improved by climbing.
  • Reading the left and right columns as a meaningful division. The supplied source assigns the two columns no significance; treat the split as page layout until something tells you otherwise.
  • Reading it as a menu in which any apex item combines with any base item. The figure shows dependency, not free choice, and a positivist framework with a purely interpretive instrument set will not survive examination.
  • Reading the apex as where the real work happens. Instruments are the most visible tier and the least consequential; a well-run interview programme serving the wrong methodology still produces the wrong answer.

If you want the vocabulary underneath the whole figure in one place, the five basic elements of a research project sets out epistemology, methodology, methods, ontology and theoretical perspective as the source defines them, along with the theoretical perspective that the pyramid does not draw but the source insists is there.

A five-minute check against your own design

Run this before you commit to a data collection method

  • You can name the tier each of your choices sits on, and say which tier you decided first.
  • You can state the philosophical framework your study is situated within, in the source's own vocabulary where possible.
  • Your methodology is a strategy for the whole study, not a synonym for the instrument you plan to use.
  • Every method at the apex serves the methodology you named, and you can say how.
  • For any label you have taken from the figure, you can point to a defined source for its meaning — and you know that the figure itself is not one.
Check before you proceed

One question that exposes most design faults

Ask someone to describe your study from the base up in three sentences: the philosophy, the methodology, the methods. If they can only start at the apex, the lower tiers were never chosen — they were inherited.

What to carry forward

  1. Philosophy underneath, methodology on top of philosophy, methods on top of methodology. That order is the figure's entire argument.
  2. Thirty-five labels are named; only a minority are defined anywhere in the supplied source, and this site does not fill the gaps by invention.
  3. The two columns beside each tier carry no stated meaning. Do not build an interpretation on them.
  4. The figure's methodology tier and the source's methodology table overlap on only two labels — treat both as partial lists.
  5. Design from the base upwards; audit from the apex downwards.

Frequently asked questions

How many labels does the pyramid actually contain?

Thirty-five: 13 data collection methods at the apex, 14 research methodologies in the middle tier and 8 fundamental philosophies at the base. They are distributed across a left and a right column beside each tier.

Does the pyramid define the methods and methodologies it lists?

No. It supplies labels only. The supplied source defines five epistemological terms and seven methodologies in separate tables, and of those seven methodologies only experimental design and action research also appear on the figure. For the remaining labels the source offers no definition.

Do the left and right columns mean anything?

The supplied source does not say that they do. The labels are simply split into two columns beside each tier. Until a defining source states otherwise, treat the arrangement as layout rather than classification.

Can I use a methodology that is not on the figure?

Yes. The source's own methodology table defines five methodologies that the figure omits — historical, comparative, descriptive, correlation and evaluation — which demonstrates that neither list is closed. What matters is that you can define the methodology from a cited work and show that it fits your question.

Which tier should I decide first?

The base, if you are designing. The figure's logic is that philosophy underpins methodology and methodology underpins methods, so deciding an instrument first inverts the dependency. When you are auditing someone else's work you reverse the direction and read from the apex down.

Is a higher tier more rigorous than a lower one?

No. The tiers describe layers of one design, not degrees of quality. A study is rigorous when the three tiers are consistent with each other and with the question, not when it reaches the top of the figure.

References and source attribution

  1. Quinlan, C. 2011, Business Research Methods, 1st ed., Cengage Publishing. Chapter 1, p. 50 — the source of the methodological pyramid as reproduced in the supplied teaching material.
  2. Clarke, R. J. 2005, Research methods and methodologies, pp. 35–45 — the work the supplied source adapts for its methodology table.
  3. Bryman, A. 2016, Social Research Methods, 5th ed., Oxford University Press, Oxford. (Listed in the supplied source's reading list.)
  4. The supplied teaching source: master's-level teaching notes and slides on research methods, including the transcribed figure and its accompanying reading.

Suggested questions for Ask KEVOS

  • Which tier of the methodological pyramid does my current design decision belong to?
  • Show me which pyramid labels the supplied source actually defines.
  • Help me audit a consultant's report from the apex of the pyramid downwards.
  • What is the difference between a methodology and a method on this figure?
  • Which methodologies does the source define that the pyramid leaves out?

Related KEVOS knowledge

The Five Basic Elements of a Research ProjectCore · research philosophyThe Methodology CatalogueCore · research methodologyResearch Methodologies: An OverviewCore · research methodologyData Collection Methods: Data as EvidenceCore · data collectionTheoretical Perspective and Philosophical FrameworkCore · research philosophyMethodological Coherence: Making Every Step FitAdvanced · research philosophy
KEVOS® · Project Delivery · Research Projects Page KVS-PM-RES-0012 · v1.0.0 · content 2026.08 Last reviewed 2026-08-16

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