This project is an illustration-based, computerized child report assessment for early manifestations and predictors of substance abuse and antisocial behavior. The ALEXSA was recently developed at RTI to fill the need for self-report assessments of problem behaviors, risk factors and outcomes for boys and girls. An ambitious project, the core “kernel” includes 350 items organized into 39 subscales and 9 factors. The ALEXSA could provide efficient child reports for research, needs assessment, and outcomes to support etiology and prevention of substance abuse and antisocial behavior.