Participants assigned to this arm will complete a 3-hour training workshop on the intervention. After completing the training, participants will be asked to implement the intervention into their routine clinical practice.

Participants assigned to this arm will complete the same 3-hour training workshop on the intervention as Arm #1. After completing the training, participants will also be asked to implement the intervention into their routine clinical practice. However, participants in this group will be asked to attend bi-weekly consultation sessions with members of the study team for 3 months following training.

A Web-based group intervention to improve emotion regulation in individuals with traumatic brain injury (TBI). Online EmReg is a 3-hour on-demand training workshop

A 7-item Likert Scale (not at all confident (1) to fully confident (7)) adapted for use with EmReg to assess provider confidence in delivering core components of the Online EmReg intervention. Total scores range from 26 to 182. Higher values indicate a higher level of self-efficacy. Used in the literature to reliably predict implementation of evidence-based interventions.

Assessed using a structured role play of EmReg groups in a simulated clinical setting. These role plays will be recorded and rated by a blinded evaluator. The evaluator will indicate the degrees to which the session goals were accomplished using a 15-item checklist. Each item will be rated a 0 (not introduced or covered), 1 (attempted/partially achieved), 2 (fully covered/achieved), or N/A (not applicable/relevant to session #). Participants can receive a total score of 0 to 30 on their performance-based role play. Higher values indicate higher achievement.

Satisfaction with training will be assessed using the Training Satisfaction Rating Scale, a 12-item, 5-point Likert scale (higher scores = higher satisfaction). Total scores range from 12 to 60. Training engagement and consultation engagement (extended group only) will be tracked by study team.