The former HEW National Strategy for Youth Development model was a community-based planning and procedural tool to enhance and to prevent delinquency through a process of youth needs assessments, needs targeted programs, and program impact evaluation. The program's 12 Impact Scales have been found to have acceptable reliabilities, substantial predictive validity with respect to Self-Reported Delinquency (SRD), and consistent correlational structural validity. In order to access the ability of the Impact Scales (excluding SRD) to predict vandalism, and also to assess the predictive relationship of age and sex to vandalism, 1,550 randomly selected males and females, aged 10-19, completed the Impact Scales (excluding SRD), and a demographics questionnaire. Data analyses indicated that 73.4% of the sample could be correctly classified by the Impact Scales and by sex. The variables most predictive of vandalism were: Normative Peer Pressure; Youth Perceived Negative Labeling by Parents; Normlessness; Youth Perceived Lack of Access to Educational Roles; Youth Perceived Negative Labeling by Peers; and sex (males were more likely to engage in vandalism). These results are similar to those obtained in an earlier study which classified youths into delinquency levels from Impact Scales scores. The results indicate that the predictors of vandalism are the same for delinquency in general, and that peer relations are the most predominantly associative of several factors in both cases. (AG)