title: Validity and Reliability of the Abbreviated Barratt Impulsiveness Scale in Spanish (BIS-15S).
abstract: OBJECTIVE: This study determined the validity and reliability of a new, abbreviated version of the Spanish Barratt Impulsiveness Scale (BIS-15S) in Colombian subjects. METHOD: The BIS-15S was tested in non-clinical (n=283) and clinical (n=164) native Spanish-speakers. Intra-scale reliability was calculated using Cronbach's α, and test-retest reliability was measured with Pearson correlations. Psychometric properties were determined using standard statistics. A factor analysis was performed to determine BIS-15S factor structure. RESULTS: 447 subjects participated in the study. Clinical subjects were older and more educated compared to non-clinical subjects. Impulsivity scores were normally distributed in each group. BIS-15S total, motor, non-planning and attention scores were significantly lower in non-clinical vs. clinical subjects. Subjects with substance-related disorders had the highest BIS-15S total scores, followed by subjects with bipolar disorders and bulimia nervosa/binge eating. Internal consistency was 0.793 and test-retest reliability was 0.80. Factor analysis confirmed a three-factor structure (attention, motor, non-planning) accounting for 47.87% of the total variance in BIS-15S total scores. CONCLUSIONS: The BIS-15S is a valid and reliable self-report measure of impulsivity in this population. Further research is needed to determine additional components of impulsivity not investigated by this measure.
authors.affiliation: Physician. PhD in Neuroscience. General Psychiatry Resident, Departamento de Psiquiatría y Salud Mental, Facultad de Medicina, Pontificia Universidad Javeriana, Bogota, Colombia. Former Chair Neuroscience Department, Facultad de Medicina, Universidad de Los Andes, Bogota, Colombia.
authors.forename: Luis
authors.initials: L
authors.lastname: Orozco-Cabal
authors.forename: Maritza
authors.initials: M
authors.lastname: Rodríguez
authors.forename: David V
authors.initials: DV
authors.lastname: Herin
authors.forename: Juanita
authors.initials: J
authors.lastname: Gempeler
authors.forename: Miguel
authors.initials: M
authors.lastname: Uribe