Purpose: to convey academic research.
Audience: educated people in the discipline, typically researchers themselves. Scientists; college and university professors
Conventions: highly structured organization; contains footnotes or works cited pages; published after review by experts in the field; technical or specialized language.
Trouble-Spots: content may be difficult for a lay-person to understand.
Purpose: to inform or to entertain.
Conventions: brief articles; contains easily-accessible language; usually written by journalists or professional writers.
Purpose: to convey research in a simplified form for practitioners.
Audience: specialized: professional workers in a field.
Conventions: contains some technical language or jargon but easily accessible by a college-educated audience; short and concise articles.
Trouble-Spots: some jargon terms may be unfamiliar to a lay-person; assumes common knowledge that may be not common to a reader. Press releases often indexed as trade journal articles.