Can Different Terms Refer to Essentially the Same Concept Across Disciplines?

Can Two Disciplines Be Studying the Same Thing Without Calling It the Same Thing?

You search another discipline and encounter an unfamiliar term. Its definition sounds remarkably similar to a concept you already know, its measures look familiar, and researchers seem to ask many of the same questions. Is this simply another disciplinary name for essentially the same concept?

Possibly. Specialized knowledge does not develop with a universal naming committee quietly preventing duplicate terminology. Different disciplines can develop different labels for similar phenomena, and terminology can vary even among specialists working on related problems. Research on terminology suggests that such variation can reflect differences in disciplinary perspective, categorization, context, and communicative purpose.

The challenge is determining whether the terms are genuinely interchangeable or merely look similar from a distance.

Different Labels Can Hide Substantial Conceptual Overlap

Terminological Difference Is Not Necessarily Conceptual Difference

Start by separating the term from the concept

A term is the linguistic expression used to name something. The concept is the underlying unit of knowledge that researchers are attempting to represent. The relationship between the two is not always one term to one concept.

Terminology research recognizes substantial variation in the ways specialized concepts are named. Fernández-Silva describes terminological variation as reflecting differences in how specialized concepts are categorized by individuals and in different contexts. Other work on terminological variation similarly emphasizes that specialists may use multiple variants to refer to a concept for reasons including perspective, communicative situation, and conceptualization.

Across disciplinary boundaries, the possibility becomes particularly important because fields can develop their vocabularies partly independently.

Why do different labels emerge?

There is no single reason. Two disciplinary traditions may have developed separately around similar phenomena. A concept may have been imported from one field and renamed or reframed in another. Different theoretical perspectives may foreground different features of the same underlying phenomenon. Terminology can also evolve historically within each literature.

Fernández-Silva's corpus-based research in an interdisciplinary domain found that disciplinary differences were reflected in terminological variation, consistent with the idea that specialists can approach shared subject matter through different conceptual systems.

Consequently, searching only the terminology of your own discipline can make another field's relevant literature effectively invisible even when researchers there study closely related phenomena.

Do not begin by asking whether the words are synonyms

Ordinary synonymy is too simple for many interdisciplinary comparisons. Instead ask whether the concepts represented by the terms are sufficiently similar for your research purpose.

Compare:

• explicit definitions;
• included and excluded dimensions;
• the level or unit of analysis;
• theoretical antecedents and consequences;
• operational definitions and measures;
• examples and non-examples;
• relationships with neighboring constructs.

This is the same underlying conceptual work needed to establish whether concepts are sufficiently equivalent across disciplinary traditions. Here, however, the warning sign is opposite: different labels may tempt you to assume difference too quickly.

Look for independent evidence of conceptual overlap

One paper saying "X is similar to Y" is a useful lead, not a conclusion. Look across several independent sources.

Particularly informative evidence includes papers that explicitly compare the constructs, reviews spanning both literatures, theoretical articles discussing terminological differences, and empirical studies that examine relationships among measures associated with the candidate concepts.

Also look at how researchers cite across disciplinary boundaries. If authors using Term A repeatedly cite theoretical or measurement work associated with Term B, there may be an intellectual relationship worth tracing.

Trace the concepts backward

Citation history can clarify why two labels exist. Follow influential papers backward to identify the foundational sources behind each terminology.

You may discover several possibilities:

These histories are not merely academic genealogy. They help explain whether apparent equivalence reflects a genuine conceptual relationship or only a broad resemblance.

Compare operationalizations, but do not let them decide alone

If two differently named constructs are measured using the same instrument, highly similar indicators, or closely related behavioral criteria, that strengthens the case for investigating conceptual overlap.

It still does not prove equivalence. Researchers may borrow a measure while changing the theoretical meaning attached to it. Conversely, two disciplines may measure the same broad construct differently because their methods, populations, or research traditions differ.

Use operationalization as one layer of evidence alongside definitions and theoretical context.

Classify the relationship instead of forcing synonymy

You do not need to decide that two terms are either perfect synonyms or completely unrelated. More precise relationships are often possible.

This classification is more useful than casually calling every related term a synonym.

The search consequences can be substantial

Terminological variation is one reason unfamiliar fields can be difficult to search. If relevant disciplines use different labels, a search built exclusively around one vocabulary may retrieve only one branch of the evidence.

Once you identify credible alternative terminology, test it. Search the unfamiliar term separately. Inspect the papers it retrieves. Does it reveal a relevant literature that your original terminology missed?

If so, add the term to your working map of disciplinary vocabulary, but retain whatever conceptual distinctions your comparison revealed. Search terms can sometimes be grouped for retrieval purposes even when the constructs require more careful separation during analysis.

Search equivalence and analytic equivalence are not identical

This distinction is particularly useful. You may decide to search several related terms broadly because missing relevant literature would be costly. During screening and analysis, however, you may discover that only some of those studies address the construct as you define it.

Search strategies often need sensitivity to terminological variation. Synthesis requires greater conceptual discrimination.

Therefore, a term can be useful as a search synonym without being a perfect theoretical synonym. Document the difference rather than forcing one decision to serve both purposes.

Different terms may reveal useful disciplinary perspectives

Do not assume that terminological convergence is always desirable. Different labels can foreground different features of a phenomenon. Terminology research has argued that variation may reflect different ways specialists conceptualize or categorize knowledge rather than mere linguistic noise.

Those differences can be theoretically productive. One disciplinary term may emphasize individual experience, another observable behavior, and another institutional context. Even when the concepts overlap, retaining the terminology may help preserve the distinct perspective each literature contributes.

Testing Whether an Unfamiliar Term Is Really Another Name for Your Concept

Common Mistakes When Different Fields Use Different Labels

Expand Your Search Broadly but Collapse Concepts Cautiously

Terminological variation can hide relevant literature, so your search may need to be more inclusive than your eventual synthesis. The critical step is documenting why different terms were treated together at one stage and separately at another.

Eventually, these judgments feed into the larger task of integrating interdisciplinary evidence without flattening the differences among its disciplinary traditions.

Before Treating Different Terms as the Same Concept

Questions About Different Terms for Similar Concepts

Different Labels Do Not Necessarily Mean Different Ideas

How to Cite This Guide

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