Feasibility of brief online gatekeeper training for Japanese university students: A randomized controlled trial.

Gatekeeper training for university students is a promising suicide prevention approach. However, there is a lack of comparative studies with control groups and the effectiveness of online gatekeeper training programs is unclear. We investigated the effectiveness of brief online gatekeeper training for Japanese university students. Participants were divided into two groups (training or control) and answered surveys at three time points (pretest, posttest, follow-up). The gatekeeper training improved students' knowledge. Skills were also improved post-training but returned to baseline level at follow-up. A brief online program may improve knowledge, but the effect is limited.