If you are not finding enough information, your topic may be too narrow. Consider broadening it by:
Always look at the list of references or works cited for leads to additional materials on the same topic.
If you are finding too much information, your topic may be too broad. Consider narrowing it by:
Smaller piece of the topic:
Broad Topic: Hurricane Katrina
Narrower Topic: Why did the suicide rate among New Orleans law enforcement officers escalate after Hurricane Katrina?
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Narrow Topic: Does cartoon viewing cause violent behaviors in children under the age of five?
Broader Topic: What are the negative effects of television viewing on children and adolescents?