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International Studies: Search Strategies

Developing a Search Strategy

Now that you've picked a database or search tool, you will need to develop a search strategy for finding relevant articles. While some databases may look different, they typically have similar search features. Depending on the database you choose, you should be able to apply several of the strategies listed below.

What Are Databases and Why You Need Them

Search Strategies

  Boolean Operators   

Infographic that explains Boolean Operators and gives examples of their uses.

Truncation is a search technique that broadens your search to include various word endings. To truncate your search terms, replace the word ending with an asterisk *.

politic* gets results for politics, politician, and political

 

Limits provide database-specific recommendations for narrowing a search. Applying limits will filter out results that don’t meet your search requirements. This will save you time because you won’t need to look through pages of search results that don’t include the information that you need Each database offers different limits. Be sure to check them out to see how they can help you with your search.

For example: In the database, Historical Abstracts, you can filter your search results for peer review, publication date, document type, language, subject, etc.

The image below illustrates how applying limits will help you to narrow
your search results.

For every limit applied the results get smaller

 

It's important to know that databases use subject headings to organize their articles. When you know the right subject headings for your topic, you can search more efficiently. Starting out on a new topic, you won't know the subject terminology. A simple way to find them is to start with a keyword search. When you find an article title that meets your needs, look for the subject headings assigned to that article. In most cases, those subject headings are hyperlinked and will take you to a list of articles with the same subject heading.

linked subject terms are within the articles details

abstracts will highlight key terms used to find the article

Scholarly articles often have extensive bibliographies, also called reference lists or works cited pages. Bibliographies include references to articles, books, and other relevant literature that were published before the article. Some databases provide links to the cited references so that you can look at those articles as well, which might provide more articles for you to use in your paper.

Cited References can help you find articles that are older than the one you are reading.

An Example:

bibliography articles were used to write an article and are older

Look at the example to the left. If you found a relevant article from 2003, you could look at the articles in the bibliography to see where your article got the information used to support their main points. These older articles can also be useful to your research, especially if you need to write a literature review.

You can use a similar method to find newer articles, by looking at the articles who have cited your 2003 article in their bibliographies. To find out more about this method, see the tab for Times Cited references.

 

 

Some databases, like Web of Science, include times cited references. Think of these as the opposite of a bibliography. Where bibliographies include references that are older than the article, times cited references are newer than the article.

Times Cited references can help you find articles that are more recent than the one you are reading.

An Example:

time cited articles are newer than the published article

Look at the example to the left. Let’s say your professor doesn’t let you include references in your paper that are older than 2005. You are finding articles about your topic, but they are all too old. Even the best article about your topic was published in 2003.

Using times cited references, you could see which articles have cited the 2003 article. Chances are you will find one published a more recently that you could use for your paper.

 

 

When you find an article that you think will be a good to use, you can take advantage of “related articles” to find similar articles. Databases have different formulas for determining how an article is “related,” but it usually is a combination of same keywords and descriptors.

You can usually find a list of related articles on the results screen of the database.

great article connected to related articles

Searching Effectively

Database Strategies for Search Terms

Start your search by identifying key terms that describe your topic. 

  • Clarify your research needs by creating a research question.
  • Focus on the nouns. Do not use words like "effects" or "relationships". These types of words are too common and not specific enough to help you locate relevant information.
  • Think about synonyms or other related terms as well.
  • Spell out acronyms.

Once you have identified your key terms, think strategically about how to use them. See the strategies below.

Strategy Description Example
Boolean (AND, OR, NOT)

AND, OR, Not are the three words used as connectors between your search terms. They are called Boolean Operators.

AND

  • Results contain sources with all search terms
  • Narrows the number and focus of results

OR

  • Results contain sources with any of your search terms
  • Broadens the number and focus of results
  • Used with synonyms or related terms

NOT

  • Eliminates sources containing the term after NOT
  • Narrows the number and focus the results

AND

artificial intelligence AND generative AI will give you results containing these words together in the same record

OR

artificial intelligence OR machine learning will give you results that talk about either of these, regardless of whether they appear in the same record

Synonym example: artificial intelligence OR neural networks

NOT

artificial intelligence NOT Chat GPT would be a way to get results about artificial intelligence that don't include the word Chat GPT

Truncation Truncation is a search technique that broadens your search to include various word endings. To truncate your search terms, replace the word ending with an asterisk * politic* will include records with politics, politician, and political
Adjacency  Adjacency is a way to tell the database that you want words to appear in a specific order. Some databases will do this automatically, but some will not. Add quotation marks around the search terms to force adjacency if needed. "artificial intelligence" will give you records only when these words appear together.
Subject Headings Subject Headings are database-specific preferred terms and are structured vocabulary that field scholars use to discuss their topic.
  • E.g., GenAI (natural language) vs. generative artificial intelligence (subject heading)

Characteristics of Subject Headings (From MIT Libraries):

  • Pre-defined "controlled vocabulary" words used to describe the content of each item in the database
  • Less flexible to search by - need to know the exact term used
  • Database looks for subjects ONLY in the subject heading filed or descriptor
  • Database looks for subjects ONLY in the subject heading filed or descriptor
  • Use if too many results - can help focus on one aspect of a broader topic
  • Results are usually very relevant to topic

Characteristics of Keywords Characteristics (From MIT Libraries):

  • Natural language and words describing your topic
  • More flexible to search with; can combine together in multiple ways (AND, OR, NOT)
  • Database looks for keywords everywhere in the record
  • May yield too many, too few results, or irrelevant results

 

When you search for articles, you can use any combination to find what you're looking for.

  • keyword + keyword 
  • subject heading + subject heading
  • keyword + subject heading

Since subject headings are created by someone other than you, you should look for them within the results of your keyword searches or a database thesaurus. Most databases will have a thesaurus.

Subject headings are usually listed within the details of an article. 

An example of when a subject heading might be useful is when you search for GenAI. This includes thousands of records, some of which you may not be interested in. You may find it useful to look at the Thesaurus for a more precise term, like generative artificial intelligence.

Refining Search Results (Database Features)

Use these features to help you refine your search results. These features work best when you have identified the relevant keywords for your topic. If your keywords are not helping you find the information you seek, consider other keywords before exploring the features below.

Feature Description Example
Limits/Filters

Limits provide database-specific recommendations for narrowing a search. Applying limits will filter out results that don’t meet your search requirements. 

Be careful applying the date limiter. It can be too limiting, and you may miss foundational articles that support your topic. Use the Times Cited function can be a better way of finding more recent articles.

Examples of limits/filters:

  • peer review
  • study type
  • format (review, article, book chapter)
Abstract The abstract of an article is a brief summary of the article's contents that can help you determine if you want to read the full text. The abstract is usually listed within the search results under an article title.  You can use the abstract to help modify your search by skimming it for additional keywords. Click on the article title to read the full abstract if it's not presented in the search results.
References

Bibliography

Scholarly articles often have extensive reference lists or bibliographies. Some databases include these in the record and you can link directly to them. You can use references in a bibliography to learn about the research used in writing the article, which may lead you to additional articles about your topic.

Times Cited/cited By

Think of Times Cited references as the opposite of a bibliography. Where bibliographies include references older than the article, Times Cited references are newer than the article. It means someone found the information in the article valuable and cited the article within their own writing.

Times Cited references can help you find more recent articles than the one you are reading.

The reference information is in the article's details after clicking the title. It's often located in the sidebar.

 

Related Articles / Suggested Sources When you find an article that you think will be good to use, you can take advantage of “related articles” to find similar articles.  There are different formulas for determining how an article is “related,” but it usually combines the same keywords and subject headings. This information can be found in the article's details after clicking the title. It's often located in the sidebar.

Keyword Searching

Google Searching

Google Scholar Searching

Search Strategies

Boolean operators are used to define the relationship between your search terms. Using them can help you to narrow or broaden your search results.

  Use

 

  To

 

 

 

 AND

 infographic about the Boolean operator AND. Two circles showing the overlap between results for the Black Death and Society. Search results would display only those articles with both search terms

 

 

Narrow search. Will retrieve records containing all of the words in your search. The dark blue area where the circles intersect represents your search results. Black Death AND Society would only retrieve records containing both of those terms.

 

 

 

 

 OR

 infographic about the Boolean operator OR. Two circles showing the overlap of search results for Black Death or Plague. Using OR will return search results with articles including either black death or plague

 

Broaden your search and retrieve records containing any of the words in your search. A search for Black Death OR Plague would retrieve records containing either of those terms.

 

 

 NOT

infographic about the Boolean operator NOT. Two circles showing the overlap of a search for black death NOT plague, which will return only those results that mention black death but not plague

 

Narrow search and retrieve records that do not contain the term following it. Black Death NOT Plague would exclude any records with the term plague..

Truncation is a search technique that broadens your search to include various word endings. To truncate your search terms, replace the word ending with an asterik *.

infographic that shows the truncated politic* will return results for politics, politician, and political

 

Limits provide database-specific recommendations for narrowing a search. Applying limits will filter out results that don’t meet your search requirements. This will save you time because you won’t need to look through pages of search results that don’t include the information that you need Each database offers different limits. Be sure to check them out to see how they can help you with your search.

For example: In the database, Historical Abstracts, you can filter your search results for peer review, publication date, document type, language, subject, etc.

The image below illustrates how applying limits will help you to narrow
your search results.

nested circles that show how applying limits will reduce the number of results. The largest circle shows 8,747 results of a search on the Enlightenment. A smaller circle within that shows 256 results for a search on the Enlightenment and the Catholic Church. The smallest inner circle shows that search limited to peer reviewed articles, with 230 results

 

It's important to know that databases use subject headings to organize their articles. When you know the right subject headings for your topic, you can search more efficiently. Starting out on a new topic, you won't know the subject terminology. A simple way to find them is to start with a keyword search. When you find an article title that meets your needs, look for the subject headings assigned to that article. In most cases, those subject headings are hyperlinked and will take you to a list of articles with the same subject heading.

screenshot of an article page with an arrow pointing to the Subject Terms. You'll find a list of subject headings or subject terms in each record. The subject headings, or subject terms, are hyperlinked and will send you to a list of records with that subject heading

screenshot of an article's abstract with several keywords highlighted. The abstract is a brief summary of the article that can help you determine is you want to read the full text. Use the abstract to help modify your search by skimming it for additional keywords

Scholarly articles often have extensive bibliographies, also called reference lists or works cited pages. Bibliographies include references to articles, books, and other relevant literature that were published before the article. Some databases provide links to the cited references so that you can look at those articles as well, which might provide more articles for you to use in your paper.

Cited References can help you find articles that are older than the one you are reading.

An Examplle:

infographic of a 2003 article, articles in its bibliography from 1998, 2000, and 2002, plus Times Cited articles from 2006, 2009, and 2011 that have the 2003 article in their bibliography

Look at the example to the left. If you found a relevant article from 2003, you could look at the articles in the bibliography to see where your article got the information used to support their main points. These older articles can also be useful to your research, especially if you need to write a literature review.

You can use a similar method to find newer articles, by looking at the articles who have cited your 2003 article in their bibliographies. To find out more about this method, see the tab for Times Cited references.

 

 

Some databases, like Web of Science, include times cited references. Think of these as the opposite of a bibliography. Where bibliographies include references that are older than the article, times cited references are newer than the article.

Times Cited references can help you find articles that are more recent than the one you are reading.

An Examplle:

infographic of a 2003 article, articles in its bibliography from 1998, 2000, and 2002, plus Times Cited articles from 2006, 2009, and 2011 that have the 2003 article in their bibliography

Look at the example to the left. Let’s say your professor doesn’t let you include references in your paper that are older than 2005. You are finding articles about your topic, but they are all too old. Even the best article about your topic was published in 2003.

Using times cited references, you could see which articles have cited the 2003 article. Chances are you will find one published a more recently that you could use for your paper.

 

 

When you find an article that you think will be a good to use, you can take advantage of “related articles” to find similar articles. Databases have different formulas for determining how an article is “related,” but it usually is a combination of same keywords and descriptors.

You can usually find a list of related articles on the results screen of the database.

infographic of a great article connected to related articles