LIS Glossary

# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
There are 6 names in this directory beginning with the letter T.
Tertiary Source
A work based entirely on secondary sources, rather than on primary sources.  It does not contain original research, but instead summarizes research reported in secondary sources.  Examples include entries in reference books and chapters in textbooks.
Text a Librarian
A service offered to answer simple reference questions when patrons are away from the library and a computer.
Thesaurus
(a) A list of the subject headings or descriptors used in a database, with information about their use and their relationships to each other.  You could search the thesaurus in PsycINFO to identify appropriate descriptors for your topic, for example.
Thesis
(a) A treatise written by a masters or undergraduate student.  Distinct from a dissertation.  The library has copies of Davidson student theses in the College Archives.
Truncation
A symbol that stands for one or more letters at the end of a word.  In an online index or database, you can use truncation to search for the root of a word and all variant endings.  For example, in Academic Search Complete, you could search for human* to retrieve records with the words humans, humanity, humanities, and so forth.  Truncation symbols vary by database; always check the Help screens or ask a librarian.
Tutorials
Short, web based guides that explain and demonstrate research tasks.  A full list of our video tutorials may be found here.