03 · What You Need to Know
Cross-Disciplinary Searching Is Partly a Translation Problem
Begin with the phenomenon rather than your favorite keyword
Suppose you want to investigate why students continue using generative AI despite knowing that its responses can be inaccurate.
You might begin with terms such as “student reliance on generative AI” or “AI dependence in education.” Those searches are reasonable starting points, but they contain the vocabulary and framing of a particular research context.
Other literatures might discuss related behavior using concepts such as trust in automation, automation bias, reliance on automated advice, algorithm appreciation, cognitive offloading, technology continuance, or advice taking. These concepts are not interchangeable. Some may ultimately prove irrelevant. The point is that searching the underlying behavior can lead you to candidate vocabularies that your initial wording would never retrieve.
Before constructing a search string, write the research problem in ordinary descriptive language. What is actually happening? Who or what is involved? What behavior, process, relationship, mechanism, or outcome are you trying to understand?
This gives you a conceptual anchor that is not owned by any one discipline.
Break the problem into concepts before generating terms
A research question should not usually be pasted wholesale into a database search box. Instead, identify its major searchable concepts.
For example, the question “How does students' trust in generative AI affect their verification of AI-generated academic feedback?” might contain conceptual groups for learners, generative AI, trust or reliance, verification behavior, and feedback.
Not every concept needs to appear in every search. Adding too many concepts with AND can make retrieval excessively narrow. The purpose of decomposition is to identify which parts of the question may have alternative disciplinary expressions.
| Underlying idea |
Possible vocabulary families |
Where differences may appear |
| Reliance on a system |
reliance, trust, acceptance, advice taking, automation bias, continuance |
Psychology, human factors, information systems, human-computer interaction |
| Checking information |
verification, fact-checking, credibility assessment, information evaluation, validation |
Education, information science, communication, media studies |
| Learning feedback |
feedback, formative feedback, automated feedback, instructional feedback |
Education, learning sciences, educational technology |
| Generative AI |
generative artificial intelligence, large language model, conversational AI, AI assistant |
Computing, education, information systems, human-computer interaction |
These are candidate terms, not declarations that the concepts are equivalent. Their usefulness must be checked against the literature.
Let relevant papers teach you the vocabulary
You do not need to know every disciplinary term before beginning. In fact, searching is often iterative precisely because the literature teaches you how the field describes the problem.
When you find a highly relevant paper, inspect more than its title. Look at the authors' keywords, abstract terminology, theoretical constructs, definitions, subject headings, and terminology used in the references it cites.
Then search those terms independently.
Start with your terminology Run a broad search using the language in which you initially understand the problem.
Find anchor papers Identify several papers that clearly address the underlying phenomenon, even if they use unfamiliar terminology.
Harvest vocabulary Record keywords, construct names, abbreviations, spelling variants, broader terms, narrower terms, and controlled subject headings.
Search the new terms Run them separately and in combinations to discover additional disciplinary literatures.
Iterate Repeat the process until new searches mostly reproduce literatures you have already identified rather than revealing major new vocabularies.
This process is less tidy than deciding on five keywords at the beginning and never changing them. It is also much more likely to reveal how another discipline actually thinks about the problem.
Use both keywords and controlled vocabulary
Many bibliographic databases assign standardized subject terms to records. PubMed, for example, uses Medical Subject Headings, or MeSH. Controlled vocabularies help connect records that may use different words for related concepts.
They should usually complement rather than replace free-text keywords.
A new concept may not yet have a sufficiently specific subject heading. Older articles may have been indexed differently. Terminology can change over time. Some databases also use different controlled vocabularies, which means a search strategy cannot always be copied unchanged from one platform to another.
A useful search therefore combines the language authors actually use with the indexing language used by the database.
Search more than one database when the problem crosses fields
A perfectly constructed search cannot retrieve articles that the database does not index.
Database selection should therefore follow the disciplinary coverage required by the research question. A problem spanning education, computing, psychology, and health, for example, may require databases or indexes with different subject coverage rather than one familiar platform.
Cross-disciplinary search guidance similarly emphasizes that databases differ in disciplinary focus and that terminology, controlled vocabularies, search fields, and syntax need to be adapted accordingly.
Watch Out
Do not treat Google Scholar, Scopus, Web of Science, PubMed, ERIC, PsycINFO, ACM Digital Library, or any other single source as a universal window onto scholarship. Their coverage, indexing, search functions, and disciplinary strengths differ. Select sources according to the question and the level of comprehensiveness your review requires.
Create a cross-disciplinary term map
When terminology becomes complicated, create a working vocabulary map rather than keeping terms in your head.
For each major concept, record the terminology encountered in each field, the definition attached to each term, and whether you consider the relationship equivalent, broader, narrower, overlapping, or merely adjacent.
| Term |
Disciplinary context |
Definition or use |
Relationship to your concept |
| Term A |
Discipline 1 |
How authors define it |
Potentially equivalent |
| Term B |
Discipline 2 |
How authors define it |
Broader |
| Term C |
Discipline 3 |
How authors define it |
Overlapping but distinct |
| Term D |
Discipline 4 |
How authors define it |
Related mechanism rather than synonym |
This prevents a dangerous shortcut in interdisciplinary searching: assuming that everything retrieved through neighboring terminology represents the same construct.
Do not confuse synonyms with related concepts
This distinction deserves particular attention.
“Trust,” “reliance,” “acceptance,” and “continuance intention,” for example, may all appear in literature about technology use. That does not make them synonyms. A person can trust a system without intending to continue using it, use a system despite distrusting it, or accept a recommendation for reasons unrelated to generalized trust.
Search broadly enough to discover conceptual neighbors, then read definitions closely enough to keep them distinct.
Search synonym
An alternative expression that can reasonably retrieve the same underlying concept.
Conceptual neighbor
A related construct that may help reveal another literature but should not automatically be treated as equivalent.
Search backward and forward from anchor papers
Keyword searching is only one route through a literature.
Once you identify a highly relevant paper, examine its reference list to find earlier work and use cited-by searching to locate later studies that build on, challenge, or apply it. This is particularly valuable when terminology has changed over time or when relevant papers do not use the words you would have searched.
Validated search research in interdisciplinary domains has shown why this matters: relevant articles may lack recognizable terminology in their titles, abstracts, or author keywords and become discoverable through indexing or citation-based approaches instead.
Search for mechanisms and outcomes when labels fail
If you still cannot find the literature you suspect exists, move below the construct label.
Search for what the phenomenon does, what causes it, how it is observed, and what outcomes it produces. Researchers may disagree about the name while describing remarkably similar processes.
For example, instead of searching only for “AI overreliance,” you might search combinations involving acceptance of incorrect recommendations, failure to verify automated advice, deference to automation, or decision errors following automated recommendations.
This behavioral translation can uncover literature whose conceptual label differs from yours.
Cross-disciplinary searching can change the research gap
A better search does more than increase your reference count. It can change the intellectual structure of the project.
You may discover that a supposedly new phenomenon has a long history elsewhere. What appeared to be a gap between disciplinary literatures may turn out to be a terminology problem. Alternatively, you may find that another discipline already contains part of the answer your field has been seeking.
Those are not failed searches. They are precisely what a literature review is supposed to discover.
04 · A Practical Example
Searching for Student Overreliance on Generative AI Across Fields
Hypothetical Example
The first search finds almost nothing useful
An education researcher wants to investigate why university students follow incorrect suggestions from generative AI. The initial search focuses on phrases such as “student AI overreliance,” “generative AI dependence,” and “uncritical student use of ChatGPT.”
The results are heavily concentrated in recent educational literature. Rather than concluding that the phenomenon is new, the researcher rewrites the problem behaviorally:
People receive advice or recommendations from an automated system and sometimes follow them despite evidence that the output may be incorrect.
That description opens several possible disciplinary routes.
Education Searches include AI literacy, feedback literacy, information evaluation, verification, and students' use of AI-generated feedback.
Human factors and psychology Searches explore trust in automation, reliance on automation, automation bias, advice taking, and decision-making with automated systems.
Human-computer interaction Searches examine human-AI interaction, explainability, trust calibration, interface cues, and reliance behavior.
Information systems Searches explore technology acceptance, continuance, perceived usefulness, and related post-adoption behaviors where conceptually relevant.
The researcher then compares definitions rather than merging every term into one giant synonym list. Some concepts are excluded because they concern different phenomena. Others reveal theories and evidence that substantially change the understanding of the original question.
The result is not merely a larger bibliography. It is a more defensible map of what is already known and where an interdisciplinary question might actually contribute.