En randomiserad kontrollerad studie för att utvärdera ett traumainformerat partnervåldsprogram

SAH isa trauma-informed 12-week intimate partner violence (IPV) intervention program.

SAH is a group trauma informed intervention that uses motivational strategies and self-monitoring of one's thoughts and responses. It provides a unique fusion of interventions for trauma and IPV and consists of 12 two-hour weekly sessions. Throughout the program, group members complete in-session practice exercises and are provided "practice assignments" to consolidate and apply information learned in group.

TAU is a 20-week state-approved IPV intervention program.

TAU is a court mandated 20 week, psychoeducational/directed program that emphasizes the sharing of power and control in relationships and personal accountability. Topics also focus on equality wheels, substance abuse impacts, culture and socialization impact on gender roles, defense mechanisms versus coping skills, triggers for stress and anger, and healthy versus unhealthy communication.

The Revised Conflict Tactics Scale (CTS2) is a 39-item measure of individual engagement in or experience of physical or psychological violence with an intimate partner. Each item is asked about both the respondent and the respondent's partner, for a total of 78 questions.The response options include 8 choices (Categories 1-7 and 0). An answer of Category 1 or 2 is coded as the corresponding number of times the specified incident occurred (once or twice in the past year). For Categories 3-5, the midpoint of the category is coded. For example: Category 3 (3-5 times) is coded as 4, Category 4 (6-10 times) is coded as 8, and Category 5 (11-20 times) is coded as 15. Category 6 (More than 20 times) should be coded as 25. Category 7 is given a score of 0 if scores for the previous year do not reflect abuse or conflict. Total scores can range from 0 to 975 and lower scores suggest less conflict.

The 7-item Restrictive Engulfment subscale of the Multidimensional Measure of Emotional Abuse (MMEA) will be used as an additional measure of psychological IPV. Each item has 7 potential responses from 0=never to 6= more than 20 times. Scores can range from 0 to 42, with higher scores being associated with more psychological IPV.

The 20-item PTSD Checklist for DSM 5 (PCL-5) will be used to assess PTSD symptoms. It is a self-report measure. Items are rated on a 5-point Likert scale [0 to 4] and summed. Scores range from 0 to 80 with higher scores associated with more PTSD symptoms. A total score of 33 or higher may indicate severe PTSD.

The 20-itemToronto Alexithymia Scale (TAS-20) will be used to assess alexithymia. The TAS-20 uses cutoff scoring, with scores of 52-60 indicating possible alexithymia, and scores above 60 indicating alexithymia.

Alcohol use will be assessed by the Alcohol Use Disorders Identification Test (AUDIT). AUDIT has 10 questions and the possible responses to each question are scored 0, 1, 2, 3 or 4, with the exception of questions 9 and 10 which have possible responses of 0, 2 and 4. The range of possible scores is from 0 to 40 where 0 indicates an abstainer who has never had any problems from alcohol.

Participants' satisfaction will be assessed with a 4-item measure used in a study conducted by the Treatment of Depression Collaborative Research Program.