A "review of selective and indicated mentoring interventions that have been evaluated for their effects on delinquency outcomes for youth . . . and key associated outcomes" is presented (p. 2). Sections in addition to a synopsis and abstract include: background; objectives; methods -- criteria for inclusion and exclusion of studies in review; results; and conclusions. "These results suggest mentoring, at least as represented by the included studies, has positive effects for these important public health problems, albeit from small to modest in effect size" (p. 20).