This research examined the role of mechanisms of moral disengagement in the exercise of moral agency. Regulatory self-sanctions can be selectively disengaged from detrimental conduct by converting harmful acts to moral ones through linkage to worthy purposes, obscuring personal causal agency by diffusion and displacement of responsibility, misrepresenting or disregarding the injurious effects inflicted on others, and vilifying the recipients of maltreatment by blaming and dehumanizing them. The study examined the structure and impact of moral disengagement on detrimental conduct and the psychological processes through which it exerts its effects. Path analyses reveal that moral disengagement fosters detrimental conduct by reducing prosocialness and anticipatory self-censure and by promoting cognitive and affective reactions conducive to aggression. The structure of the paths of influence is very similar for interpersonal aggression and delinquent conduct. Although the various mechanisms of moral disengagement operate in concert, moral reconstruals of harmful conduct by linking it to worthy purposes and vilification of victims seem to contribute most heavily to engagement in detrimental activities. Psychological theories of moral agency focus heavily on moral thought to the neglect of moral conduct. The limited attention to moral conduct reflects both the rationalistic bias of many theories of morality (Kohlberg, 1984) and the convenience of investigatory method. It is much easier to examine how people reason about hypothetical moral dilemmas than to study how they behave in difficult life predicaments. People suffer from the wrongs done to them, regardless of how perpetrators might justify their inhumane actions. The regulation of conduct involves much more than moral reasoning. A theory of morality must specify the mechanisms by which people come to live in accordance with moral standards. In social cognitive theory (Bandura, 1991), moral reasoning is translated into actions through self-regulatory mechanisms through which moral agency is exercised. In the course of socialization , moral standards are constructed from information conveyed by direct tuition, evaluative social reactions to one's conduct, and exposure to the selfevaluative standards modeled by others. Once formed, such standards serve as guides and deterrents for action. People regulate their actions by the consequences they apply to them