Web-based Self-help Intervention Promoting Mental Health in Adolescents

"The web-based self-help intervention consists of 14 exercises based on the following positive psychology domains: personal strengths, pleasure, gratitude, engagement (flow, mindfulness) and positive relationships.~The (partly interactive) exercises are created to be implemented by the participants themselves without support of a therapist.~Before starting the intervention, the participants are told that they will receive a daily email with an instruction for a short exercise over the period of two weeks. The participants are instructed to complete the exercises every day and are told that they will be asked to evaluate these exercises at the next appointment (post-test, week 2)"

"The web-based sham intervention consists of 14 text messages containing random interesting facts (fun facts).~Before starting the sham intervention, the participants are told that they will receive a daily email with a text message to read every over the period of two weeks. The participants are instructed to read these text messages every day and are told that they will be asked to evaluate these exercises at the next appointment (post-test, week 2)"