Resumen

FOLINO, Jorge Óscar; ESCOBAR-CORDOBA, Franklin  y  CASTILLO, Jorge L. Exploring the Validity of the Barratt Impulsiveness Scale (BIS 11) in Argentinean Penitentiary Population.. rev.colomb.psiquiatr. [online]. 2006, vol.35, n.2, pp.132-148. ISSN 0034-7450.

Objective: To review the usefulness and examine various reliability and validity aspects of the Barratt Impulsiveness Scale Version 11 (BIS 11) in penitentiary population. Material and Methods: One hundred and eighty convicts and forensic patients who were candidates for conditional release or discharge were assessed within the Risk Assessment Pilot Program of the General Attorney’s Office of the Province of Buenos Aires, in the city of La Plata, Argentina, from 2001 to 2004. Clinical assessment was performed blinded to the results of the self-administered BIS 11. Indicators of consistency and concurrent as well as predictive validity were also estimated. Results: The distribution of the results obtained with the BIS 11 was not normal. In addition, results yielded a mean of 63 for total score. Cronbach’s alpha coefficient for total score was 0.68; the motor impulsivity scale showed the highest value (0.70). Total score was significantly correlated (r = 0.28) with the clinical assessment of the HCR-20 impulsivity item. There was also a significant correlation with the results of other instruments measuring risk of violence and psychopathy. There was a moderate agreement (kappa = 0.55) between high and low impulsive groups as defined by BIS 11 and the clinical dichotomical classification of impulsiveness. Predictive validity was not significant. Conclusions: Although the selfadministered BIS 11 may not be completely reliable in penitentiary settings, it could be useful in several cases especially when administered as part of a forensic psychiatric assessment with a multitactical approach.

Palabras clave : Impulsive behavior; psychiatric status rating scales; risk; validation studies; violence.

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