RT Journal Article T1 Exploratory and confirmatory factorial structure of the MCMI-III personality disorders: overlapping versus non-overlapping scales A1 Cuevas Esteban, Lara A1 García, Luis F. A1 Aluja, Antón A1 García, Óscar AB 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. PB Universidad de Zaragoza SN 0213-6163 YR 2008 FD 2008-06 LK https://hdl.handle.net/20.500.14352/131892 UL https://hdl.handle.net/20.500.14352/131892 LA eng NO 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 DS Docta Complutense RD 25 feb 2026