“…These results are consistent with research supporting the multidimensionality of impulsivity (Cyders & Coskunpinar, 2011; de Wit, 2009; Dougherty et al, 2005; Reynolds et al, 2008) and the distinct contributions of both self-regulation ability and behavioral impulsivity to engagement in problem behaviors (e.g., Eisenberg et al, 2005; Eisenberg et al, 2009; Schreiber, Grant, & Odlaug, 2012). Additionally, the two-dimensional model has demonstrated adequate fit and internal consistency when applied to community samples of middle school (Morean, Camenga, et al, 2014) and high school students (Bold et al, 2017), as well as adolescent cigarette smokers (Morean et al, 2015). It is possible that the underwhelming model fit indices for the unidimensional BIS-Brief reflect the fact that the two-dimensional structure better represents the construct being assessed.…”