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Primary and Secondary Literature in the Sciences

What is the difference between a primary and secondary literature source?

Chart Summarizes Distinguishing Features of Primary and Secondary Literature

WHAT TO LOOK FOR IN JUDGING AN ARTICLE

PRIMARY LITERATURE SECONDARY LITERATURE
Peer Review

primary literature is always peer reviewed

may or may not be peer reviewed

Title

a brief statement of a research project, usually very technical

may sound technical, but may sound broad or "cute"

Focus

very narrow and specific

a broader overview
Abstract usually not usually

Introduction to Topic

yes yes
Methods Section yes not usually
Results Section yes not usually

Data in Figures and Tables

usually not usually
Discussion Section yes

the entire paper could be considered a discussion

Literature Cited always may or may not have
The Form of Publication

usually an article in print or online journal, but may be in a book, conference report, or a report from the government or another institution

may take any form ~ an article in a journal, an article in an "annual review" series, a report, a book, a part of a book or a website

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