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Cuevas Esteban, Lara García, Luis F. Aluja, Antón García, Óscar 2026-02-09T10:13:10Z 2026-02-09T10:13:10Z 2008-06 Cuevas, L., García, L. F., Aluja, A., & García, Ó. (2008). Exploratory and confirmatory factorial structure of the MCMI-III Personality Disorders: Overlapping versus non-overlapping scales. The European Journal of Psychiatry, 22(2). https://doi.org/10.4321/S0213-61632008000200001 0213-6163 10.4321/S0213-61632008000200001 https://hdl.handle.net/20.500.14352/131892 https://doi.org/10.4321/S0213-61632008000200001 https://scielo.isciii.es/scielo.php?script=sci_arttext&pid=S0213-61632008000200001&lng=en&nrm=iso&tlng=en Background and Objectives: The aim of this study was to explore the factorial structure of the 14 Personality Disorder (PD's) scales of the MCMI-III for the overlapping and non-overlapping scales, independently. Previous exploratory studies using different factor extraction procedures inform that the structure of MCMI-III personality disorders has between 2 and 4 factors. Methods: The present study used a large sample of 674 non-clinical subjects divided at random in two groups: a) calibration, and b) validation. In the calibration group, principal component analysis with orthogonal rotation was carried out, obtaining 2, 3 and 4 factors for the overlapping and non-overlapping scales independently. In the validation group, the three models were compared using confirmatory factorial analysis techniques. Results and Conclusions: The exploratory and confirmatory results indicate that the 4-factor solution is the most plausible. Although the congruence coefficients between non-overlapping and overlapping scales in the 4-factor solution were higher, confirmatory factor analysis showed that models designed from overlapping scales did not fit well to data. eng http://creativecommons.org/licenses/by-nc/4.0/ open access Attribution-NonCommercial 4.0 International Exploratory and confirmatory factorial structure of the MCMI-III personality disorders: overlapping versus non-overlapping scales journal article