Title page for ETD etd-12082008-130433

Type of Document Dissertation
Author McBride, Nadine LeBarron
URN etd-12082008-130433
Title Differential Item Functioning on the International Personality Item Pool’s Neuroticism Scale
Degree PhD
Department Psychology
Advisory Committee
Advisor Name Title
Harvey, Robert J. Committee Chair
Bell, Martha Ann Committee Member
Bonham, Thirwall W. Committee Member
Carlson, Kevin D. Committee Member
  • differential item functioning
  • DFIT
  • IPIP
  • Neuroticism
Date of Defense 2008-11-11
Availability unrestricted
As use of the public-domain International Personality Item Pool (IPIP) scales has

grown significantly over the past decade (Goldberg, Johnson, Eber, Hogan, Ashton,

Cloninger, & Gough, 2006) research on the psychometric properties of the items and scales

have become increasingly important. This research study examines the IPIP scale

constructed to measure the Five Factor Model (FFM) domain of Neuroticism (as measured

by the NEO-PI-R) for occurrences of differential functioning at both the item and test level

by gender and three age ranges using the DFIT framework (Raju, van der Linden, & Fleer,

1993) This study found six items that displayed differential item functioning by gender and

three items that displayed differential item functioning by age. No differential functioning

at the test level was found. Items demonstrating DIF and implications for potential scale

revision are discussed.

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