Psychometric properties of the Arabic version of Barratt Impulsiveness Scale 11: The development of short form

Impulsivity is an important mental health-related variable that has been associated with various human behaviors. The Barratt Impulsiveness Scale is the most frequently used measure to examine impulsivity. However, its psychometric and factor structure was not examined in Arabic speaking population. The goal of the current study was to examine the psychometric properties and factor structure of the Barratt Impulsiveness Scale in Arabic speaking population. The current study used a cross-sectional design. Two independent samples were recruited: college students (N = 250) and persons with heart failure (N = 165). Exploratory factor analysis, then a series of confirmatory factor analyses were used to assess one- and three-factor models of the Barratt Impulsiveness Scale (30 items; i.e., BIS-11) and Barratt Impulsiveness Scale (15 items; i.e., BIS-15). Because our analysis did not support the factor structure of the previous versions of the Barratt Impulsiveness Scale, we used confirmatory factor analysis to evaluate the model structure of the single-factor measure. To assess the measurement invariance, the newly developed measure was examined across different genders and populations. Due to poor psychometrics of BIS-11 and BIS-15, a short form (BIS-SF) was developed; and validity, reliability, and measurement invariance were supported. The current analysis showed that BIS-11 and BIS-15 have poor psychometrics. Thus, there was a need to improve the measure by reducing the number of items and re-evaluating the psychometrics of the new measure. The BIS-SF is a reliable, valid tool to assess impulsivity in our samples. Other studies need to support the current study findings in populations with other chronic illnesses.