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Between Normal and Abnormal Personality – Examining the Joint Structure of the IPIP-NEO-120 and the PID-5

Schöllkopf, Charlotte LU (2023) PSYP01 20231
Department of Psychology
Abstract
Objective: The overlap of normal and abnormal personality and personality disorders was found on facet and domain level, but only a few studies assessed the higher order joint structure. In this study, the Personality Inventory for the DSM-5 (PID-5-100 item form) and the IPIP-NEO-120 are assessed in their internal consistency, convergent and discriminant validity and their joint structure, modelled as the overlap of the General Factor of Personality (GFP) and p-factor.
Method: The IPIP-NEO-120 and PID-5-100 are examined in their scale consistencies, and validity is assessed with Spearman ρ coefficients and confirmatory factor analyses (CFA). The overlap of both instruments was modelled with a Canonical Correlation (CCA) and in a... (More)
Objective: The overlap of normal and abnormal personality and personality disorders was found on facet and domain level, but only a few studies assessed the higher order joint structure. In this study, the Personality Inventory for the DSM-5 (PID-5-100 item form) and the IPIP-NEO-120 are assessed in their internal consistency, convergent and discriminant validity and their joint structure, modelled as the overlap of the General Factor of Personality (GFP) and p-factor.
Method: The IPIP-NEO-120 and PID-5-100 are examined in their scale consistencies, and validity is assessed with Spearman ρ coefficients and confirmatory factor analyses (CFA). The overlap of both instruments was modelled with a Canonical Correlation (CCA) and in a Structural Equation Modelling (SEM) framework.
Results: The IPIP-NEO-120 showed high reliabilities and expected convergence with the Five Factor Model (FFM). The PID-5-100 showed moderate reliabilities and differentiated results for the facet structure. It converged well for most factors with the proposed structure, indicating a reliable and valid use of the 100 item form. The CCA indicated an overlap of 55%. On higher order level, the structure displayed high convergence (β = -0.89), although the factor Openness had no influence on the GFP. The results are pointing towards the existence of a mutual construct of normal and abnormal personality.
Conclusion: The PID-5-100 showed comparable results to the original long version. The high convergence of normal and abnormal personality is discussed as “Big Everything” of personality and psychopathology, or a methodological artefact, such as social desirability. (Less)
Please use this url to cite or link to this publication:
author
Schöllkopf, Charlotte LU
supervisor
organization
course
PSYP01 20231
year
type
H2 - Master's Degree (Two Years)
subject
keywords
PID-5, Five Factor Model, Big One, Structural Equation Modelling, General Factor of Personality
language
English
id
9132147
alternative location
https://osf.io/x75g2/
date added to LUP
2023-07-06 08:58:41
date last changed
2023-09-14 15:02:07
@misc{9132147,
  abstract     = {{Objective: The overlap of normal and abnormal personality and personality disorders was found on facet and domain level, but only a few studies assessed the higher order joint structure. In this study, the Personality Inventory for the DSM-5 (PID-5-100 item form) and the IPIP-NEO-120 are assessed in their internal consistency, convergent and discriminant validity and their joint structure, modelled as the overlap of the General Factor of Personality (GFP) and p-factor. 
Method: The IPIP-NEO-120 and PID-5-100 are examined in their scale consistencies, and validity is assessed with Spearman ρ coefficients and confirmatory factor analyses (CFA). The overlap of both instruments was modelled with a Canonical Correlation (CCA) and in a Structural Equation Modelling (SEM) framework. 
Results: The IPIP-NEO-120 showed high reliabilities and expected convergence with the Five Factor Model (FFM). The PID-5-100 showed moderate reliabilities and differentiated results for the facet structure. It converged well for most factors with the proposed structure, indicating a reliable and valid use of the 100 item form. The CCA indicated an overlap of 55%. On higher order level, the structure displayed high convergence (β = -0.89), although the factor Openness had no influence on the GFP. The results are pointing towards the existence of a mutual construct of normal and abnormal personality. 
Conclusion: The PID-5-100 showed comparable results to the original long version. The high convergence of normal and abnormal personality is discussed as “Big Everything” of personality and psychopathology, or a methodological artefact, such as social desirability.}},
  author       = {{Schöllkopf, Charlotte}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{Between Normal and Abnormal Personality – Examining the Joint Structure of the IPIP-NEO-120 and the PID-5}},
  year         = {{2023}},
}