What reference book did you use?
To find a reference book in the discipline of psychology, look at the resource guide for Psychology that is accessible from the Resources Guides/Pathfinders page on the Library web page under Electronic Resources. The resource guide for Psychology will list reference books that are physically housed in the Library, and will also refer you to electronic reference resources.
To find an overview article in an electronic reference book, select NetLibrary eBooks under Electronic Resources from the Library's main page. Scroll down and click 'Reference Center.' Then click the '+' sign next to Psychology under 'Reference Center Browse.' Click one of the books listed in blue under the Psychology heading.
You may need to try several of the ebooks in order to find an article on your topic. Most ebooks have an index. Check the index and the table of contents for your topic.