“…The aim of this study, then, was to determine whether treatment participation rate mediated the relationships between three baseline issue severities and post-treatment employment status, that is, whether some of the increased employment after treatment in consumers with higher baseline levels of alcohol use, drug use, and psychiatric issue severity could be attributed to a higher treatment participation rate. Support for this relationship came from prior studies of individuals with SUDs and psychiatric disorders, which suggested that (a) those with lower baseline substance use or psychiatric issue levels are more likely to show a higher treatment participation rate (Drapalski, Bennett, & Bellack, 2011;Evans et al, 2009;Neighbors, Barnett, Rohsenow, Colby, & Monti, 2010), (b) those with a higher treatment participation rate are more likely to be employed after treatment (Evans et al, 2009;Funn & Woodruff, 2011), and (c) those with lower baseline substance use or psychiatric issues are more likely to be employed (Bond, Drake, & Becker, 2012;Hogue, Dauber, Dasaro, & Morgenstern, 2010). Based on this research, then, we hypothesized that treatment participation rate would mediate the relationships between each of the three baseline issue severities and employment status at 210 days after intake into a long-term outpatient substance abuse program.…”