The group format includes warm-up community building exercises, psychoeducational presentation of material standardized by the use of PowerPoint slides, followed by discussion of the information and interactive exercises, and closes with exercises to improve affect management skills, such as mindfulness or guided imagery.

The GAD-7 is a 7-item self-report measure of general anxiety. Respondents rate each item according to the following instructions, "Over the last 2 weeks how often have you been bothered by any of the following:" Items are rated via four choices: 0= not at all, 1= several days, 2 = more than half the days, and 3= nearly every day. Scores are summed with higher scores indicating higher level of psychological distress. The GAD-7 has been shown to have an 89% sensitivity and a 82% specificity for identifying general anxiety disorder, based on DSM-5.

The DAR-5 is a 7-item measure of anger that contains four questions about anger response (frequency, intensity, duration, and physical antagonism), and three items related to anger functional impairment (adverse impact on social relationships, work, and health). The revised version of this measure will be used, which reduced the Likert scale responses from nine to five items with no loss of validity. The measure has shown good internal consistency, with a Cronbach's alpha of .77 for anger response and .85 for anger impairment. Test-retest reliability was .66 for anger response and .56 for anger impairment. The scale has also shown good construct validity, showing significant correlations with all seven subscales of the longer State-Trait Anger Expression Inventory (STAXI).

The ISS is a 30-item self-report measure of trait shame, comprised of a 24-item internalized shame subscale and a 6-item self-esteem sub-scale. The measure asks about different experiences of shame without actually using the word "shame", which can be triggering and difficult to admit. A score of 50 or higher is purported to represent problematic levels of shame. The measure has shown strong internal consistency and reliability on both the internalized shame and self-esteem subscales with alpha coefficients of .88 and .96, and test-retest relatability of .81 and .75 respectively.

The 33-item PTCI was used to assess trauma-related thoughts and beliefs. The PTCI has three subscales: negative cognitions about the self, negative cognitions about the world, and self-blame as well as a global scale, total negative cognitions, which is the sum of the three subscales. Items are rated using a seven-point Likert-type response scale that ranges from 1 = totally disagree, to 7 = totally agree. Negative thinking scores are computed by summing the items in each subscale with higher scores indicating higher ratings of negative thinking. The PTCI has demonstrated good internal consistency, test-retest reliability, and validity.

The AEE is a 20-item scale that measures the belief that the expression of emotions is a sign of weakness (weakness); the belief that emotions should be kept under control (control); the belief that other people will reject expressed emotions (social); and the tendency to keep emotions to oneself (non-expression). Respondents are asked to respond to each item on a 5-point Likert scale ranging from strongly disagree (1) to strongly agree (5) so that scores on the total scale have a possible range of 20 to 100, with higher scores indicating more negative attitudes toward emotional expression. It is reliable, single total score with alpha reliability of .93, and valid with high correlation with the Emotional Expression Questionnaire (r = .62, p<.001).

The VR-12 is a 12-item instrument primarily used to measure health related quality of life and disease burden. The instrument summarizes both physical health and mental health influences on overall quality of life. The VR-12 was derived from the Veterans RAND 36 Item Health Survey and has been used extensively with a Veteran population.

The PEG is a three-item scale of pain, derived from the Brief Pain Inventory, and includes items of pain intensity (P), interference with enjoyment of life (E), and interference with general activity (G). Overall, reliability of the PEG was good (0.73 and 0.89 in two samples). Construct validity for the PEG was also good for pain-specific measures (Krebs et al., 2009).

The PSEQ is a 2-item questionnaire of pain, derived from the 10-item PSEQ. The 2-item scale has shown good validity and internal consistency, and had good convergent validity (Nicholas et al., 2015).