Lib 150 Section 13 Lloyd Chittenden Searching with Keywords, Boolean operators, Truncation And Subject Headings Please turn off your cell phones.

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Lib 150 Section 13 Lloyd Chittenden Searching with Keywords, Boolean operators, Truncation And Subject Headings Please turn off your cell phones

Choosing Keywords What discrete (separate or distinct) ideas or concepts make up or are contained within your research question? What are the effects of TV violence on children? Children AND violence AND television

Keywords What are some synonyms or closely related words or phrases for each of the terms? Children Children OR Youth OR Teenagers Violence Violence OR Aggression OR Hostility Television Television OR TV OR Media

Combining keywords with Boolean operators AND joins discrete terms to narrow a search OR joins synonyms to broaden a search NOT excludes terms to narrow a search Parentheses organize search terms (like math) Effective: (5+9) – (6+3) = 5 Not so effective: – = 11

Combining keywords with Boolean operators (cont’d) (children OR teenagers OR adolescents) AND (violence OR aggression OR murder) AND (television OR tv OR media) Online help:

***Truncation*** Use an asterisk (*) to cut off words at root Find words that have the same root but different endings Example: robot* robot, robots, robotic, robotics

In Class Exercise Break into groups Follow instructions on the handout

Cherry Picking Strategy Use Keyword searching to find one good item that is directly about your topic. Ex: Native Americans in Movies Find the Subject Heading in the record for that item. Indians in Motion Pictures Search on that term as a subject to bring up more items on the same topic.

Library of Congress Subject Headings These are subject terms decided on by the Library of Congress that bring together all works on a particular topic. Heart attacks or Myocardial Infarctions? Native Americans or Indians or First Nations? Capital Punishment or Death Penalty? LC will pick one term for each concept Try browsing LCSH

Be specific When searching with LCSH look for the most specific term that fits your topic. Works on more specific aspects of a topic will be with the most specific term Divorce Divorced People  Divorced Parents  Children of Divorced Parents  Adult Children of Divorced Parents

Coming up… Quiz 1 next week