What is the difference between trade, professional and peer reviewed journals?

For comment on current news, events or issues.

To locate or check factual information.

To find examples from everyday life.

For a discussion of theoretical concepts.

For directions to relevant literature, provided by literature reviews and bibliographies.

To locate writing judged to be of excellent quality - through the process of Peer Review.

For examples of the application of research methodologies.

For reports of the results of original research.

To identify areas of interest or ideas and suggestions for further research.