Think of research as a conversation. Each article is an author's contribution to the conversation on a topic. As you start researching a topic, it's important to get up to speed on the ongoing conversation around your topic before you decide what you want to contribute. For more on this, watch this video from the University of Nevada Las Vegas Libraries:
Research is a Conversation from UNLV Libraries on Vimeo.
As you learn more and more about your topic and the conversations going on around it, use that knowledge to guide you as you finalize your topic. Watch this video from the North Carolina State University Libraries:
