FREE MLS - Master of Library and Information Science Information Retrieval Strategies Questions and Answers

Question 1

A researcher is looking for highly relevant scholarly articles on a niche topic, 'the socio-economic impact of microfinance on rural women in sub-Saharan Africa,' and is overwhelmed by the sheer volume of results from a broad keyword search.
Which advanced search strategy would be most effective for narrowing down the results to highly precise and relevant documents?

Accepted Answer

Using Boolean operators (AND, OR, NOT) to combine keywords with high specificity.

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Employing truncation to broaden the search to include variations of keywords.

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Limiting the search to articles published in the last 100 years.

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Performing a natural language query without specific operators.

Question 2

Which of the following best describes the 'pearl growing' or 'snowballing' technique in information retrieval?

Accepted Answer

Starting with a known relevant document and using its references or citing articles to find more related resources.

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Expanding a search by adding more general keywords after an initial specific search yields too few results.

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Systematically reviewing all search results regardless of initial relevance ranking to ensure no document is missed.

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Using a thesaurus or controlled vocabulary to identify broader and narrower terms for a topic.

Question 3

When conducting a comprehensive literature review, a librarian advises a student to use 'subject headings' or 'controlled vocabulary' in addition to keywords. What is the primary advantage of using controlled vocabulary in an information retrieval strategy?

Accepted Answer

It ensures that all relevant documents on a topic are retrieved, even if authors use different terminology.

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It simplifies the search process by allowing natural language queries without needing specific terms.

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It automatically translates search terms into multiple languages for international databases.

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It provides a more visually appealing display of search results.

Question 4

A library user is trying to find books by a specific author, but is unsure of the exact spelling of the author's last name (e.g., 'Chomsky' or 'Chomski'). Which search technique would be most appropriate to account for these potential spelling variations?

Accepted Answer

Using truncation or wildcard characters (e.g., Chomsk*).

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Employing a proximity operator (e.g., 'Chomsky NEAR books').

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Limiting the search to a specific publication year.

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Applying a NOT operator to exclude unrelated authors.

Question 5

Which information retrieval strategy focuses on using the relationships between documents (e.g., citations, co-occurrence of terms) to find relevant information, rather than just matching keywords?

Accepted Answer

Citation searching or bibliographic coupling.

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Boolean searching.

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Keyword stuffing.

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Natural language processing.

Question 6

A librarian is assisting a student who needs to find information on a very broad topic, 'the impact of technology on society,' but the initial search yields an overwhelming number of irrelevant results from various disciplines. Which strategy should the librarian recommend to help the student refine the search and manage the scope?

Accepted Answer

Suggesting the use of field searching to specify where keywords should appear (e.g., 'technology' in title, 'society' in abstract).

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Advising to remove all search operators and rely solely on natural language queries.

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Encouraging the student to expand the search by using more generic terms.

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Recommending searching only in general web search engines rather than academic databases.