Adolescents’ social-emotional skills are associated with positive outcomes in psychosocialhealth and success in education and work. In this study, we examined the effectiveness ofSkills4Life, a Social Emotional Learning program for preparatory vocational secondaryeducation aimed at enhancing self-awareness, social awareness, self-management,relationship skills, and responsible decision making. Low-achieving students withadditional educational needs participated in a quasi-experimental study, with anintervention (N 465) and a control group (N 274). We assessed the outcomes onsocial-emotional skills and psychosocial health using self-report questionnaires at pre-test(T0), after finishing the basic module (T1), and after finishing the internship module (T2).Multi-level regression analyses indicated no overall effects on the outcomes at T1 and T2.After completing the entire program at T2, students from non-western backgrounds hadsignificantly unfavorable lower scores on social awareness and relationship skills. Positiveeffects were found on self-management and preparation for internships in students taughtby experienced professional trainers compared to students taught by regular classroomteachers at T2. Alterations in the socio-cultural approach of the Skills4Life program andteacher training are needed to support all students in developing the social-emotional skillsthat they need for success at school and the workplace.NWOPRO-4-43Public Health and primary carePrevention, Population and Disease management (PrePoD
