School-based

INTRODUCTION: Longitudinal prevention research in adolescents often involves sensitive data collection, necessitating anonymity. Self-Generated Identification Codes (SGICs) have emerged as a tool for linking anonymous data while preserving...

Prevention science over the past years has accumulated evidence on the effectiveness of drug prevention interventions (Sloboda et al. 2014). In Europe this improvement has been a consequence of priorities defined by EU drug strategies since...