Effects of a Multifaceted School-Based Intervention to Protect Mental Health and Prevent Suicidal Behaviour in Adolescents in Spain

Pupils will receive a four-session psychoeducational programme, delivered weekly by trained psychologists during school hours, covering mental health literacy, emotion regulation, identification of suicide risk, and help-seeking skills. Concurrently, parents and teachers will access a digital co-intervention through a custom-designed platform with four multimedia modules.