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One successful replication does not permanently settle a scientific claim. Another replication can still be valuable when important uncertainty remains, although its value depends on what new evidence the additional study can provide.
Read Guide →A famous finding can be worth replicating, but fame is not a sufficient reason to choose it. A stronger replication target is usually a claim for which reducing uncertainty would meaningfully improve knowledge or decisions in the field.
Read Guide →Before defending a proposed study, try to construct the strongest credible argument against doing it. A serious objection can expose weaknesses in the rationale, evidence, contribution, design, feasibility, or assumptions while there is still time to respond.
Read Guide →A literature search is not simply an exercise in finding as many papers as possible. Its purpose depends on what you need the literature to help you understand, decide, or establish in your research.
Read Guide →A literature search finds potentially relevant evidence; a literature review makes sense of that evidence. Understanding the distinction helps you avoid confusing a collection of papers with an actual review of the literature.
Read Guide →You usually need some engagement with the literature before finalizing a research question, but you do not necessarily need a complete literature review first. In many studies, searching, reading, and question development proceed iteratively.
Read Guide →Starting broad can help when you are still learning a research area, while a focused question becomes increasingly important when you need to identify a defined body of evidence. The most useful approach is often progressive focusing rather than choosing one strategy for the entire project.
Read Guide →A literature search can legitimately change your research question when it reveals better terminology, existing evidence, conceptual problems, feasibility constraints, or a more meaningful problem. The key is to distinguish evidence-informed refinement from arbitrary or outcome-driven changes.
Read Guide →A search strategy is more than a list of keywords. It is a deliberate plan connecting your research question to searchable concepts, appropriate terminology, information sources, query structure, and decisions about how the search will be tested and documented.
Read Guide →Not every literature search needs to be systematic. The appropriate level of rigor depends on what the search is supposed to accomplish, how the literature will be used, and how strongly your conclusions depend on identifying the relevant evidence.
Read Guide →Systematic, reproducible, and comprehensive describe different qualities of literature searching. A search can be reproducible without being comprehensive, systematic without achieving perfect coverage, or extensive without being sufficiently documented to reproduce.
Read Guide →Your first literature search usually should be broad enough to reveal the terminology and shape of the literature, but not so broad that the results become meaningless. Learn how to find a useful starting point and refine it deliberately.
Read Guide →A small result set does not necessarily mean your literature search is too narrow. Learn how to detect when restrictions, missing terminology, or excessive concept blocks are causing relevant studies to disappear.
Read Guide →Scopus, Web of Science, and Google Scholar overlap, but they are not interchangeable. Compare their coverage, search tools, citation data, access, and best uses to decide which belongs in your research workflow.
Read Guide →PubMed and MEDLINE are closely connected, but they are not the same thing. Learn what each contains, how MEDLINE fits inside PubMed, and why the distinction matters when searching biomedical literature.
Read Guide →Google Scholar and Google search different information environments. Learn when Google Scholar is better for scholarly literature, when regular Google is more useful, and how researchers can use both strategically.
Read Guide →Scopus and Web of Science overlap substantially, but neither simply contains everything in the other. Their source selection, historical coverage, document types, and indexing decisions differ, which can affect both literature searches and citation analyses.
Read Guide →Your university library's main search box can be an excellent starting point for finding books, articles, and other resources, but it does not necessarily search everything your library provides. Learn when discovery systems are useful and when individual databases are the better choice.
Read Guide →Lacking access to Scopus, Web of Science, or another subscription database does not mean you cannot conduct a serious literature search. Learn how to identify suitable alternatives, use free scholarly resources, obtain articles legally, and report important limitations transparently.
Read Guide →Conference proceedings can contain important research that journal searches miss, particularly in conference-oriented and rapidly developing fields. Learn when to search them, where to look, and how to handle conference papers and abstracts responsibly.
Read Guide →Important evidence does not always appear in academic journals. Learn where to find government reports, policy documents, official statistics, technical reports, and other nonjournal research and how to evaluate what you find.
Read Guide →MeSH terms and other subject headings can retrieve research by standardized concepts, but they do not make keywords unnecessary. Using both can help you find indexed literature while also capturing newer records, alternative terminology, and concepts that subject headings may not fully represent.
Read Guide →A concept may remain relevant even after researchers stop calling it by the same name. Learn how to combine current terminology, historical terms, and previous indexing so older literature does not disappear from your search.
Read Guide →Searching a term in the title, abstract, or keyword fields does not produce the same search. Each field represents an article differently, so choosing where to search can change both how much literature you retrieve and how relevant it is.
Read Guide →A search that works perfectly in one academic database may fail or behave differently in another. The concepts behind the strategy can transfer, but operators, fields, vocabularies, automatic processing, and syntax often need to be translated.
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