Item response theory and validity of the NEO-FFI in adolescents

Spence, Ruth, Owens, Matthew and Goodyer, Ian (2012) Item response theory and validity of the NEO-FFI in adolescents. Personality and individual differences, 53 (6) . pp. 801-807. ISSN 0191-8869 [Article] (doi:10.1016/j.paid.2012.06.002)

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The present study applied item response theory (IRT) to the NEO five factor inventory (NEO-FFI) completed by a community based sample of adolescents. The results revealed that many of these personality items may not be discriminating well, with some traits demonstrating greater reliability than others. Furthermore, the threshold values highlighted that the majority of the items had skewed responses, suggesting a limited utility of some response categories. Generally, removing poorly discriminating items does not harm external validity, suggesting IRT reduces measurement error and increases reliability without compromising validity.

Item Type: Article
Research Areas: A. > School of Science and Technology > Psychology > Centre for Abuse and Trauma Studies (CATS)
Item ID: 14732
Notes on copyright: Open Access funded by Wellcome Trust
Under a Creative Commons license
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Depositing User: Ruth Spence
Date Deposited: 22 Apr 2015 16:25
Last Modified: 31 May 2019 15:50

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