What mechanism does the MEDLINE database use to provide consistency in information retrieval?
A) Textwords
B) MeSH terminology
C) Boolean operators
D) Scopus reviews
B
Feedback:
MeSH (Medical Subject Headings) terminology is a controlled vocabulary used in MEDLINE that provides a consistent way to retrieve information that may use different terminology for the same concepts.. A textword search looks for your keyword in the text fields of the records, i.e., in the title and the abstract. Boolean operators (such as "and" and "or") can be used to expand or restrict a search. For example, if you wanted citations on lung cancer and smoking, you could enter the following: lung cancer AND smoking. The Boolean operator AND would restrict the search to citations with both lung cancer and smoking as textwords or subject headings. The Boolean operator "OR" expands a search—if you entered lung cancer OR smoking, you would retrieve all references with either term. Scopus is a bibliographic database useful for nurses.
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