The utility of male domestic violence offender typologies: new directions for research, policy, and practice

The development of empirically based behavioral and psychological typologies provides clear evidence that offenders vary across types. A review and synthesis of the literature reveals three types of batterers common across current typology research-a low, moderate, and high-risk offender. Examination of these types demonstrates that most male offenders do not escalate over time from low to high levels of risk. This observation refutes previous claims regarding a common consensus among researchers that battering escalates in frequency and intensity over time. There are particular characteristics specific to each type that establish thresholds distinct to each classification. Thus, it is unlikely that an offender will move from one type to another. Interventions targeted to address the needs of subsamples of offenders can lead to more effectively protecting those most at risk for future violence. Addressing the issue of woman battering through the prism of typologies has significant implications for research, policy, and practice.     

Courtship violence using couple data: characteristics and perceptions

This study examined courtship violence using couple data. Participants were 50 heterosexual dating couples with at least one member of the couple being a university student. Using the Conflict Tactics Scales 2 (CTS2), both members of a couple reported on received and inflicted physical and psychological violence. The prevalence of physical aggression depended on how violence was defined. On the CTS2, 60% of couples were considered physically violent when within-couple agreement was not considered; this dropped to as low as 28% when agreement had to be present. Women were more likely than men to report inflicting psychological aggression and to report aggressing against their partner with a playful intent. Taken together, these findings demonstrate the need to continue to examine courtship violence, especially by utilizing responses from both members of a couple.     

The distribution of shotgun pellets after ricochet from an intermediate target surface

This paper presents a geometrical model for the ricochet of shotgun pellets from an intermediate target surface. The model predicts that after ricochet the shotgun pellet pattern will be elongated in the direction parallel to the intermediate target surface, as has been found in empirical studies. This paper also shows that the angle of impact theta of a mass of shotgun pellets with a target surface can be calculated without significant error from the width W and the length L of the pellet pattern using the formula: sin theta= W/L.