science

Scopus

Scopus is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Scopus rather than just read about it. In short: Scopus is a scientific abstract and citation database, launched by the academic publisher Elsevier as a competitor to older Web of Science in 2004. The ensuing competition between the two databases has been characterized as "intense" and is considered to significantly benefit their users in terms of continuous improvement in coverage, search/analysis capabilities, but not in price.

Key takeaways

Scopus belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Scopus to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Scopus from memory before moving on to harder problems.

Reference excerpt

Scopus is a scientific abstract and citation database, launched by the academic publisher Elsevier as a competitor to older Web of Science in 2004. The ensuing competition between the two databases has been characterized as "intense" and is considered to significantly benefit their users in terms of continuous improvement in coverage, search/analysis capabilities, but not in price. Free database The Lens completes the triad of main universal academic research databases. Journals in Scopus are reviewed for sufficient quality each year according to four numerical measures: h-Index, CiteScore, SJR (SCImago Journal Rank) and SNIP (source normalized impact per paper). For this reason, the journals listed in Scopus are considered to meet the requirement for peer review quality established by several research grant agencies for their grant recipients and by degree-accreditation boards in a number of countries. Scopus also allows patent searches from a dedicated patent database, Lexis-Nexis, albeit with limited functionality. At present, Scopus indexes the following patent databases: United States Patent and Trademark Office (USPTO); European Patent Office (EPO); Japan Patent Office (JPO): World Intellectual Property Organization (WIPO); UK Intellectual Property Office.

Overview Comparing ease of use and coverage of Scopus and the Web of Science (WoS), a 2006 study concluded that Scopus is "easy to navigate, even for the novice user.[...]The ability to search both forward and backward from a particular citation would be very helpful to the researcher. The multidisciplinary aspect allows the researcher to easily search outside of his discipline." and "One advantage of WOS over Scopus is the depth of coverage, with the full WOS database going back to 1945 and Scopus going back to 1966. However, Scopus and WOS complement each other as neither resource is all inclusive." A small number of studies found approximately an 80-90% overlap in coverage between WoS and Scopus for the period between 1990 and 2020. In terms of the structured query language search capabilities Scopus is somewhat more advanced than Web of Science: for example, WoS can only search for words that appear close together (NEAR/n queries), which may return results such as "immunotherapy for cancer" or "cancer therapies"; Scopus can also search for words in a specific order (PRE/n queries), allowing more targeted results such as "cancer therapies" only. Also, when the same article was covered in Scopus and in the Web of Science, its Scopus entry had a keyword ratio 3-5 of than its WoS counterpart, and the Scopus keywords are more focused on the specific article content, whereas WoS has more keywords related to the broad category of the article's subject. A larger number of narrow-targeted keywords allows Scopus users to find a larger number of relevant publications, while filtering out false positives. On the other hand, WoS exports (e.g. in the RIS format) the DOI numbers of cited articles, while Scopus exports the titles of cited articles. Also, Scopus allows exporting 20,000 references (e.g., as a RIS file) at once, while WoS export is limited to 5,000 references at once. Scopus provides chemical search by CAS number and by chemical name, while WoS does not have these features. On the other hand, WoS has chemical structure search, but only a small number of publications are actually indexed for chemical structure searches. SciFinder is the preferred option for chemical searches in all cases. Scopus also offers author profiles which cover affiliations, number of publications and their bibliographic data, references, and details on the number of citations each published document has received. It has alerting features that allow registered users to track changes to a profile and a facility to calculate authors' h-index. In 2016, a gratis website, Scopus CiteScore, was introduced. It provides citation data for all 25,000+ active titles such as journals, conference proceedings and books in Scopus and provides an alternative to the impact factor, a journal-level indicator which may correlate negatively with reliability. Scopus IDs for individual authors can be integrated with the non-proprietary digital identifier ORCID. In 2018, Scopus started embedding partial information about the open access status of works, using Unpaywall data. However, Scopus' RIS export files do not contain the information about Open Access status. Several studies looked into the comparison of the number of publications indexed in the academic research databases. In a 2024 publication from the University of Jordan the publications from their university referenced in several databases were compared. The authors found, that the degree of coverage decreases in the order: Scopus, Web of Science, The Lens. A 2024 study from Spain concluded that zero-cost The Lens, which combined the data from Crossref, PubMed, Core and OpenAlex, had the largest coverage, with more than 247 million bibliographic records. No-cost Open Alex had the second largest coverage of about 240 million publications in total. Free SciLit came in third with 149 million of publications agglomerated from Crossref, PubMed, preprint repositories and publishers. Web of Science Core Collection came in fourth with 85 million. records. Scopus was the fifth with 78 million records. While no database was comprehensive, the coverage overlap between any two databases was substantial. A 2025 study from a medical university in China limited to scleral contact lenses concluded that Scopus had 3.6% more references than Web of Science.

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Scopus

Start with the simplest possible case. Write down what Scopus claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Scopus before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Scopus ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Scopus

In research: Scopus appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Scopus in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Scopus is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2004 introductions, Bibliographic databases and indexes, Citation indices, so understanding it makes those chapters shorter.
In everyday life: Look for Scopus outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Scopus in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Scopus means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Scopus out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Scopus in simple terms?

Why does Scopus matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Scopus?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Scopus.