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PW01-132 - Psychometric Analysis Of Kernberg€S Personality Inventory (Ipo) Reduced

Published online by Cambridge University Press:  17 April 2020

M. García-García ,
M.M. Benítez-Hernández ,
E. Fernández-Jiménez ,
S. Fuentes-Márquez ,
M.C. Senín-Calderón ,
M. Valdés-Díaz  and
J.F. Rodríguez-Testal
M. García-García
Affiliation:
Personalidad, Evaluación y Tratamiento Psicológicos, Universidad de Sevilla, Sevilla, Spain
M.M. Benítez-Hernández
Affiliation:
Personalidad, Evaluación y Tratamiento Psicológicos, Universidad de Sevilla, Sevilla, Spain
E. Fernández-Jiménez
Affiliation:
Personalidad, Evaluación y Tratamiento Psicológicos, Universidad de Sevilla, Sevilla, Spain
S. Fuentes-Márquez
Affiliation:
Personalidad, Evaluación y Tratamiento Psicológicos, Universidad de Sevilla, Sevilla, Spain
M.C. Senín-Calderón
Affiliation:
Personalidad, Evaluación y Tratamiento Psicológicos, Universidad de Sevilla, Sevilla, Spain
M. Valdés-Díaz
Affiliation:
Personalidad, Evaluación y Tratamiento Psicológicos, Universidad de Sevilla, Sevilla, Spain
J.F. Rodríguez-Testal
Affiliation:
Personalidad, Evaluación y Tratamiento Psicológicos, Universidad de Sevilla, Sevilla, Spain

Abstract

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Antecedents

Kernberg's classification of personality disorders (1987) differentiates psychic organization according to the severity: neurotic, borderline and psychotic. Lenzenweger et al. (2001) used a reduced version of IPO with 57 items developed by Kernberg and Clarkin (1995).

Objectives and hypothesis

IPO was applied in a sample of patients and a control group. We expected to find an adequate reliability and validity of the inventory. Scales adequately distinguish content borderline, neurotic and psychotic.

Method

Participants: 288 subjects (64.9% women), 116 patients attended to private clinical practice from February 2007 to September 2009. 172 control subjects matched by sex, social class and sincerity (EPI).

Transversal design, a measure collective in the comparison group and individual in patients ones. A group of patients was selected for the retest (n = 88).

Instruments. We applied IPO, the BPRS, MCMI-II and MIPS. Diagnoses according to DSM-IV-TR.

Results

Internal consistency (Cronbach) was adequate for the three scales: .83; .90 and .89. The testretest reliability was correct for a mean interval of 44 days (.78; .81; .78). The validity analyses differed between diagnostic groups in Axis I (p< .05), but not in the clusters of personality (p>.05). No differences in BPRS with scale of borderline, but yes with neurotic and psychotic ones. The MCMI-II was properly differentiated by the three scales of the IPO.

Conclusions

The IPO is an useful scale with reliability and validity. The main drawback concerns certain aspects of the borderline scale.

Type
Methodology / Assessment methods / Rating scales
Information
European Psychiatry , Volume 25 , Issue S1: 18th European Congress of Psychiatry. February 27, March 2, 2010 - Munich, Germany , 2010 , 25-E1531
Copyright
Copyright © European Psychiatric Association 2009
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