Examining the Efficacy of the Man Therapy Platform in Reducing Problematic Anger Among Military Service Members With and Without a TBI History

Problematic anger is highly prevalent among military service members. Among service members, problematic anger prospectively predicts suicidal ideation, even after controlling for other psychiatric disorders. Existing approaches designed to reduce anger have not been shown to satisfactorily impact clinical outcomes across populations, and among service members receiving treatment for PTSD, anger is one of the few symptoms that persists even if a PTSD diagnosis subsides. Thus, there is a need to adapt existing problematic anger treatments for service members.

Man Therapy is an interactive digital solution that uses humor and straightforward language to circumvent traditional barriers to accessing mental health care. The aim of this study will evaluate the efficacy of the Man Therapy platform compared to waitlist control in reducing indices of problematic anger among male military service members with problematic anger. Participants will be randomized following the pre-intervention assessment. Participants randomized to receive Man Therapy will view the interactive digital solution in a single session. Assessments will occur pre-intervention, post-intervention, and at 1- and 3-month follow-ups. Waitlist controls will receive the intervention after the 3-month follow-up. The goal is to reduce indices of problematic anger and psychosocial correlates of anger.

Aim 1: To evaluate the efficacy of Man Therapy relative to waitlist controls in reducing indices of problematic anger among male military SMs who present with problematic anger (N = 226).

Hypothesis 1: Compared with waitlist controls at 1- and 3-month follow-ups, Man Therapy will result in lower levels of anger, as measured by the State-Trait Anger Expression Inventory-2 (STAXI-2) subscale of "State Anger (S-Anger)."

Objective 2: To evaluate the efficacy of Man Therapy relative to waitlist controls in reducing psychosocial correlates of anger (e.g., suicidal ideation, PTSD symptoms, poor interpersonal functioning) among male military SMs with problematic anger.

Hypothesis 2: Compared with waitlist control at 1- and 3-month follow-ups, Man Therapy will result in lower levels of (a) PTSD symptoms (PTSD Checklist for DSM-5 \[PCL-5\]), (b) suicidal ideation (Depressive Symptom Index-Suicidal Ideation \[DSI-SS\]34), and (c) poor interpersonal functioning (Interpersonal Needs Questionnaire-15 \[INQ-15\]).

Objective 3: To examine if the effects in Objectives 2 and 3 differ based on a participant's history of a mild TBI, the mechanism of primary mild TBI, and/or the number of mild TBIs.

Hypothesis 3: Compared with those without TBI, those with history of TBI will have higher levels of anger, as measured by the State-Trait Anger Expression Inventory-2 (STAXI-2), higher levels of PTSD symptoms (PTSD Checklist for DSM-5 \[PCL-5\]), more severe suicidal ideation (Depressive Symptom Index-Suicidal Ideation \[DSI-SS\]), and poorer interpersonal functioning (Interpersonal Needs Questionnaire-15 \[INQ-15\]).

• PTSD symptoms (PTSD Checklist for DSM-5 [PCL-5]) [Time frame: From enrollment to the completion of the 3-month follow-up assessment.]
• Suicidal Ideation (Depressive Symptom Index-Suicidal Ideation [DSI-SS]) [Time frame: From enrollment to the completion of the 3-month follow-up assessment.]
• Poor Interpersonal Functioning (Interpersonal Needs Questionnaire-15 [INQ-15]) [Time frame: From enrollment to the completion of a 3-month follow-up assessment.]