Psychometric assessment. (n.d.). Retrieved January 28, 2007, from the Psychology Wiki: http://psychology.wikia.com/wiki/Psychometric_assessment
Title. (Last update or copyright date; if not known, put n.d.). Retrieved date, from the title of the wiki: URL of specific document
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Please note that the APA Style Guide to Electronic References warns writers that wikis (like Wikipedia, for example) are collaborative projects that cannot guarantee the verifiability or expertise of their entries.