LINKS Training and Unit Support for Mental Health: a Group-randomized Effectiveness Trial

The LINKS curriculum, adapted from Britt et al. (2018a), was designed to improve unit climate, knowledge, and attitudes about mental health treatment seeking in military personnel. The present study extends this research by examining implementation options, comparing the effectiveness of LINKS to an active control condition with training delivered by non-experts and comparing modules that varied in training length. Eight Army platoons were randomly assigned to one of four conditions: (1) 1-h Active Control, (2) 2-h Active Control, (3) 1-h LINKS, or (4) 2-h LINKS. Two platoons were assigned to each condition. Surveys were administered at pre-training (T1), post-training (T2), and 3 months later (T3). Eighty-four participants completed all study phases. Regardless of training content, participants receiving the 2-h modules reported greater training acceptability than those receiving the 1-h modules. At T3, participants in the LINKS conditions reported more mental health knowledge than participants in the Active Control conditions. Sustained effects were also observed on a number of treatment barriers and facilitators, with the LINKS conditions generally leading to better outcomes. At T3, 2-h LINKS condition participants reported receiving more mental health treatment relative to the other conditions. Findings suggest that LINKS can be effectively delivered by non-expert trainers, is a viable intervention for targeting mental health treatment-seeking, and is optimally packaged in a 2-h module. The training might benefit from additional leadership training efforts.