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

Keywords

differential item functioning
DFIT
IPIP
Neuroticism

Date of Defense

2008-11-11

Availability

unrestricted

Abstract

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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