Challenges in Evaluating a Community-Level Intervention to Address Root Causes of Youth Violence.

Violence disproportionately impacts Black American youth, representing a major health disparity. Addressing the possible root causes of structural inequities to reduce violence may increase the impact of prevention strategies. However, efforts to evaluate the impact of such interventions pose numerous methodological challenges, particularly around selecting an effective evaluation design to detect change at the community level, with adequate power and sampling, and appropriate constructs and measurement strategies.

Relations Between Perceptions of Parental Messages Supporting Fighting and Nonviolence and Adolescents' Physical Aggression: Beliefs as Mediators.

The purpose of this study was to examine adolescents' beliefs about fighting as mediators of longitudinal relations between perceptions of parental support for fighting and nonviolence and changes in adolescents' physical aggression. Participants were 2,575 middle school students ( = 12.20, = 1.

Project GRIP: An Illustration of Participatory Action Research with Communities of People Who Own and Use Firearms.

Firearm-related injury and mortality prevention strategies are often incompatible with and potentially ineffective for the very populations at risk. Such incompatibility is reflective of a cultural disconnect between investigators and prevention specialists and those who own and use firearms. The current paper describes Project GRIP, a research study that was guided by the principles of Participatory Action Research (PAR).

Mixed methods evaluation of a jail diversion program: Impact on arrests and functioning.

This mixed methods study had two aims: (1) to examine the effectiveness of a jail diversion program in reducing recidivism and promoting educational and employment outcomes; and (2) to qualitatively explore mechanisms through which the program was effective. Participants were 17 individuals arrested for drug offenses who participated in an intensive, law enforcement-based jail diversion program, and 17 individuals in a comparison group. Arrests were extracted from police records, and education and employment were extracted from program data.