order to reduce the guilt, they may devalue the victim. Lerner and colleagues claim that there has not been adequate evidence to support this interpretation. They conducted one study that found derogation of victims occurred even by observers who were not implicated in the process of the experiment and thus had no reason to feel guilty. Discomfort reduction Alternatively, victim derogation and other strategies may only be ways to alleviate discomfort after viewing suffering. This would mean that the primary motivation is not to restore a belief in a just world, but to reduce discomfort caused by empathizing. Studies have shown that victim derogation does not suppress subsequent helping activity and that empathizing with the victim plays a large role when assigning blame. According to Ervin Staub, devaluing the victim should lead to lesser compensation if restoring belief in a just world was the primary motive; instead, there is virtually no difference in compensation amounts whether the compensation precedes or follows devaluation. Psychopathy has been linked to the lack of just-world maintaining strategies, possibly due to dampened emotional reactions and lack of empathy. Additional evidence After Lerner's first studies, other researchers replicated these findings in other settings in which individuals are victimized. This work, which began in the 1970s and continues today, has investigated how observers react to victims of random calamities like traffic accidents, as well as rape and domestic violence, illnesses, and poverty. Generally, researchers have found that observers of the suffering of innocent victims tend to both derogate and blame victims for their suffering. Observers thus maintain their belief in a just world by changing their cognitions about the victims' character. In the early 1970s, social psychologists Zick Rubin and Letitia Anne Peplau developed a measure of belief in a just world. This measure and its revised form published in 1975 allowed for the study of individual differences in just-world beliefs. Much of the subsequent research on the just-world hypothesis used these measurement scales. These studies on victims of violence, illness, and poverty and others like them have provided consistent support for the link between observers' just-world beliefs and their tendency to blame victims for their suffering. As a result, the existence of the just-world hypothesis as a psychological phenomenon has become widely accepted. Violence Researchers have looked at how observers react to victims of rape and other violence. In a formative experiment on rape and belief