The International Personality Item Pool (IPIP) is a
public domain
The public domain (PD) consists of all the creative work to which no Exclusive exclusive intellectual property rights apply. Those rights may have expired, been forfeited, expressly Waiver, waived, or may be inapplicable. Because no one holds ...
collection of items for use in
personality tests
A personality test is a method of assessing human personality construct (psychology), constructs. Most personality assessment instruments (despite being loosely referred to as "personality tests") are in fact introspective (i.e., subjective) self ...
. It is managed by the
Oregon Research Institute
The Oregon Research Institute is an American psychology research institute in Eugene, Oregon
Eugene ( ) is a city in and the county seat of Lane County, Oregon, United States. It is located at the southern end of the Willamette Valley, near the ...
.
The pool contains 3,329 items. These items make up more than 250 inventories that measure a variety of personality factors, many of which correlate well to better-known systems such as the
16PF Questionnaire and the
Big Five personality traits
In personality psychology and psychometrics, the Big 5 or five-factor model (FFM) is a widely-used Scientific theory, scientific model for describing how personality Trait theory, traits differ across people using five distinct Factor analysis, ...
. IPIP provides journal citations to trace those inventories back to the publication as well as correlation tables between questions of the same factor and between results from different inventories for comparison. Scoring keys that mention the items used for a test are given in a list form; they can be formatted into questionnaires.
Many broad-bandwidth personality inventories (e.g., MMPI, NEO-PI) are proprietary. As a result, researchers cannot freely deploy those instruments and, thus, cannot contribute to further instrument development.
[ ationale for the IPIP https://web.archive.org/web/20050313001046/http://ipip.ori.org/newRationale.htm/ref> An additional problem is that these proprietary instruments are rarely revised, with some having items that are dated.]
See also
* Psychological testing
Psychological testing refers to the administration of psychological tests. Psychological tests are administered or scored by trained evaluators. A person's responses are evaluated according to carefully prescribed guidelines. Scores are thought t ...
References
External links
International Personality Item Pool website
{{Big Five
Personality tests