A processing model of emotion regulation (PMER) was investigated by assessing the attachment system and the two types of emotion regulation strategies (adaptive and maladaptive) in undergraduate students (N = 307) at Georgia State University. The analysis of the data revealed an interesting set of findings: (a) attachment anxiety was a stronger indicator of whether people use adaptive or maladaptive emotion regulation strategies than was attachment avoidance; (b) self efficacy, and not cognitive inability to suppress unwanted thoughts, partially mediated the relationship between attachment anxiety and adaptive emotion regulation strategies; and (c) cognitive inability to suppress unwanted thoughts, and not self efficacy beliefs, partially mediated the relationship between attachment anxiety and maladaptive emotion regulation strategies. Overall, the findings provided substantial support for the PMER, and also have important implications for clinical interventions aimed at effective emotion regulation.