Resumen

CAMPO-ARIAS, Adalberto; DIAZ-MARTINEZ, Luis Alfonso  y  BARROS-BERMUDEZ, Jaider Alfonso. Internal Consistency of the Self-Administered Questionnaire of the Structured Clinical Interview for DSM-IV Axis II Diagnosis. rev.colomb.psiquiatr. [online]. 2008, vol.37, n.3, pp.378-384. ISSN 0034-7450.

Introduction: It is infrequent to identify possible personality disorder cases among the general population due to the lack of self-applied instruments with good validity and reliability. Up to this time, what has not been explored is the reliability of the self-report questionnaire of the SCID-II in any community or clinical population. Objective: To determine the internal consistency of the twelve sub-scales of the self-rated questionnaire of the SCID-II in adults from the general population of Bucaramanga, Colombia. Method: A probabilistic sample of 2,496 adults dwelling in the urban area of Bucaramanga, Colombia, completed the self-administered questionnaire of the SCID-II. The mean age of the group was 38.0 years; and the mean formal scholarship was 9.2 years. The self-reporting questionnaire of the SCID-II has 119 questions that investigate the twelve personality disorders defined by the DSM-IV. To know the internal consistency for each sub-scale the Kuder-Richardson’s formula-20 was computed. Results: The Kuder-Richardson coefficient was 0.75 for antisocial personality disorder; 0.70, for avoidant; 0.54, for borderline; 0.55, for dependent; 0.61, for depressive; 0.59, for histrionic; 0.72, for narcissistic; 0.68, for obsessive-compulsive; 0.73, for paranoid; 0.63, for passive-aggressive; 0.69, for schizoid; and 0.72 for schizotypal. Conclusions: The internal consistency varies significantly for each sub-scale of self-reported questionnaire of the SCID-II, and it is sufficiently high for five out of twelve sub-scales: avoidant, antisocial, histrionic, paranoid, and schizotypal personality disorders. It is necessary to investigate further, and to corroborate these findings in other settings and popopulations.

Palabras clave : Personality disorders; population; adult; validation studies.

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