The Moffitt theory suggests that there are two qualitatively distinct types of offenders that require distinct theoretical explanations. Findings conclude that the theoretical arguments are surprisingly unclear on key issues and highly problematic. Results show that the taxonomic approach does not offer much that is not already included in the various general theories, although Moffitt emphasizes learning of prosocial skills and the development of an anti-social personality. However, the theory has not presented any arguments that a typology is truly needed, as similar patterns can also be interpreted in light of established general theories. The taxonomy is certainly valid in so far as there exists people who not only behave anti-socially throughout their lives, but also differ from others on a range of characteristics; it is nevertheless more reasonable to suggest that the differences between the law-abiding and the highest-rate offenders are on a sliding scale. References