Differential Item Functioning: An Examination of the NEO-FFI by Sex in Older Adults

Understanding sex differences when assessing personality in older adults is important for researchers and clinicians. The current study utilized differential item functioning (DIF) to compare male and female older adults’ responses on the NEO-FFI to detect potential sources of measurement bias. Part...

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Main Authors: Marissa A. Gogniat, Violeta J. Rodriguez, Maria Granros, Kharine R. Jean, Talia L. Robinson, L. Stephen Miller
Format: Article
Language:English
Published: SAGE Publishing 2022-03-01
Series:SAGE Open
Online Access:https://doi.org/10.1177/21582440221086607
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author Marissa A. Gogniat
Violeta J. Rodriguez
Maria Granros
Kharine R. Jean
Talia L. Robinson
L. Stephen Miller
author_facet Marissa A. Gogniat
Violeta J. Rodriguez
Maria Granros
Kharine R. Jean
Talia L. Robinson
L. Stephen Miller
author_sort Marissa A. Gogniat
collection DOAJ
description Understanding sex differences when assessing personality in older adults is important for researchers and clinicians. The current study utilized differential item functioning (DIF) to compare male and female older adults’ responses on the NEO-FFI to detect potential sources of measurement bias. Participants included 244 older adults (98 males, 146 females, mean age = 73). DIF by sex was determined using ordinal logistic regression and item response theory.Non-uniform DIF was present in item 31, and uniform DIF was present in item 26 in the Neuroticism scale. In the Extraversion scale, non-uniform DIF was present in items 32 and 37. In the Openness scale, non-uniform DIF was present in items 23 and 48; uniform DIF was present in items 53 and 58. Following Monte Carlo simulations to prevent overidentification, non-uniform DIF was present in item 31 in the Neuroticism scale and item 32 in the Extraversion scale. Results suggest that the NEO-FFI is a minimally biased measurement tool based on sex.
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spelling doaj.art-89f1b6e49f1f4e0ebce6846fcac10e7c2022-12-21T21:10:21ZengSAGE PublishingSAGE Open2158-24402022-03-011210.1177/21582440221086607Differential Item Functioning: An Examination of the NEO-FFI by Sex in Older AdultsMarissa A. Gogniat0Violeta J. Rodriguez1Maria Granros2Kharine R. Jean3Talia L. Robinson4L. Stephen Miller5University of Georgia, Athens, USAUniversity of Miami Miller School of Medicine, FL, USAUniversity of Georgia, Athens, USAUniversity of Georgia, Athens, USAUniversity of Georgia, Athens, USAUniversity of Georgia, Athens, USAUnderstanding sex differences when assessing personality in older adults is important for researchers and clinicians. The current study utilized differential item functioning (DIF) to compare male and female older adults’ responses on the NEO-FFI to detect potential sources of measurement bias. Participants included 244 older adults (98 males, 146 females, mean age = 73). DIF by sex was determined using ordinal logistic regression and item response theory.Non-uniform DIF was present in item 31, and uniform DIF was present in item 26 in the Neuroticism scale. In the Extraversion scale, non-uniform DIF was present in items 32 and 37. In the Openness scale, non-uniform DIF was present in items 23 and 48; uniform DIF was present in items 53 and 58. Following Monte Carlo simulations to prevent overidentification, non-uniform DIF was present in item 31 in the Neuroticism scale and item 32 in the Extraversion scale. Results suggest that the NEO-FFI is a minimally biased measurement tool based on sex.https://doi.org/10.1177/21582440221086607
spellingShingle Marissa A. Gogniat
Violeta J. Rodriguez
Maria Granros
Kharine R. Jean
Talia L. Robinson
L. Stephen Miller
Differential Item Functioning: An Examination of the NEO-FFI by Sex in Older Adults
SAGE Open
title Differential Item Functioning: An Examination of the NEO-FFI by Sex in Older Adults
title_full Differential Item Functioning: An Examination of the NEO-FFI by Sex in Older Adults
title_fullStr Differential Item Functioning: An Examination of the NEO-FFI by Sex in Older Adults
title_full_unstemmed Differential Item Functioning: An Examination of the NEO-FFI by Sex in Older Adults
title_short Differential Item Functioning: An Examination of the NEO-FFI by Sex in Older Adults
title_sort differential item functioning an examination of the neo ffi by sex in older adults
url https://doi.org/10.1177/21582440221086607
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