Mindful Attention Training Workshop for Firefighters

To evaluate the efficacy of the Mindful Attention Training (MAT) workshop by examining self-reported levels of (1) nonjudgmental acceptance, (2) nonreactivity as well as (3) psychological resilience and (4) self-compassion at each time point using the following measure:

• Five Facet Mindfulness Questionnaire (FFMQ; Baer et al., 2006): 39-item measure that assesses a participant's capacity for the following five factors: observing, describing, acting with awareness, non-judging of inner experience, and non-reactivity to inner experience.

To evaluate the efficacy of the Mindful Attention Training (MAT) workshop by examining self-reported levels of mindful attention and awareness at each time point using the following measure:

• Mindful Attention Awareness Scale (MAAS; Brown & Ryan, 2003): 15-item scale assessing a participant's capacity for mindful attention, a key component of mindfulness.

To evaluate the efficacy of the Mindful Attention Training (MAT) workshop on the symptom severity of PTSD at each time point using the following measure:

• Posttraumatic Stress Disorder Checklist for the Diagnostic and Statistical Manual of Mental Disorders (PCL-5): 20-item self-report measure that assesses the 20 Diagnostic and Statistical Manual of Mental Disorders (DSM-5) symptoms of PTSD over the past month.

To evaluate the efficacy of the Mindful Attention Training (MAT) workshop on the alcohol use and alcohol use severity at each time point using the following measure:

• Alcohol Use Disorders Identification Test (AUDIT): 10-item screening measurement to assess any hazardous and harmful alcohol consumption during the past year.

To evaluate the efficacy of the Mindful Attention Training (MAT) workshop on the symptom severity of depression at each time point using the following measure:

• Overall Depression Severity and Impairment Scale (ODSIS): 5 item measure assessing for past week depression-related symptoms.

To evaluate the efficacy of the Mindful Attention Training (MAT) workshop on the severity and presence of suicidal thoughts at each time point using the following measure:

• Beck Suicide Scale-5 (BSS-5): 5-item measure assessing the presence and intensity of suicidal thoughts.

To evaluate the feasibility and acceptability of the MAT workshop, as compared to waitlist, as defined by: (1) firefighters' self-reported helpfulness of the workshop and (2) firefighters' self-reported efficacy ratings of the workshop using the following measure:

• Post-MAT Workshop Questionnaire (Post-MAT): 10-item questionnaire assessing the degree to which participants found the workshop helpful and tolerable.

To evaluate the efficacy of the Mindful Attention Training (MAT) workshop on the symptom severity of anxiety at each time point using the following measure:

• Overall Anxiety Severity and Impairment Scale (OASIS): 5 item measure assessing for past week anxiety-related symptoms.

To evaluate the group dynamics of the MAT workshop using the following measure:

• Group Evaluation Scale (GES; Joyce, 2005): 7-item measure assessing how the participant felt while participating in the group, particularly comfortability and sense of being understood by other group members.

To evaluate the cohesion of each group in the MAT workshop using the following measure:

• Group Cohesion Questionnaire (GCQ; MacKenzie, 1983): 12-item measure assessing a participant's view of the cohesion of the group and the quality of the group dynamic.

To evaluate the influence of the Mindful Attention Training (MAT) workshop on self-reported occupational stress levels at each time point using the following measure:

• The Sources of Occupational Stress (SOOS-14): 14-item self-report measure used to assess levels of occupational stress (i.e., harmful physical and psychological responses that occur when job requirements do not align with the worker's abilities, resources, and/or needs) among firefighters.