Reducing Violence Without Police: A Review of Research Evidence

Reducing Violence Without Police:  A Review of Research Evidence

Arnold Ventures asked the Research and Evaluation Center at John Jay College of Criminal Justice to review and summarize the research evidence for policies and programs that reduce community violence without relying on police.

Opinions and Perceptions of Residents in New York City Public Housing: More Findings from Household Surveys in MAP Communities and non-MAP Communities

Opinions and Perceptions of Residents in New York City Public Housing: More Findings from Household Surveys in MAP Communities and non-MAP Communities

Surveys of New York City public housing residents suggest that changes in some public safety outcomes might be mediated by gains in community well-being, social cohesion, engagement with government, and citizen trust in the competence of government agencies and actors. As communities become more tightly connected and more supported, they may experience gains in public safety.

Reported Crime in MAP Communities Compared with Other NYC Areas

Reported Crime in MAP Communities Compared with Other NYC Areas

A rigorous test of the Mayor’s Action Plan for Neighborhood Safety indicates that New York City’s effort to improve the safety of public housing communities was beginning to show benefits by the end of 2019 and could be considered a promising intervention.

Easily Overstated

Easily Overstated

Policymakers, advocates, and even some researchers claim that youth confinement rates across the United States dropped in recent years due to changes in policy and practice. Such claims remain unproven, but voters and elected officials are inclined to accept them as factual because they are offered by reputable agencies and repeated in news media sources. Without reliable evidence, however, the notion that state-level youth confinement rates fall primarily in response to progressive policy reforms is merely appealing rhetoric.

Opinions and Perceptions of Residents in New York City Public Housing

Opinions and Perceptions of Residents in New York City Public Housing

As part of an evaluation of the New York City Mayor’s Action Plan for Neighborhood Safety (MAP), researchers from John Jay College of Criminal Justice collaborated with survey specialists from NORC at the University Chicago to collect data from two probability samples of residents in public housing developments in New York City. One sample of residents came from communities involved in the MAP initiative. A second sample was from statistically matched housing developments not involved in MAP.

Risk Terrain Modeling: Seasonality and Predictive Validity

Risk Terrain Modeling: Seasonality and Predictive Validity

This study focuses on crimes involving firearms in Baltimore, Maryland to answer three research questions concerning the effect of seasonality: (1) Do changes in the seasons affect which spatial factors are significantly related to crime?; (2) Does risk terrain modeling have predictive validity on a short-term basis?; and (3) Are the same areas high-risk throughout the year? To accomplish this, the authors ran twelve monthly risk terrain models and one yearly risk terrain model. The study found that risk factors vary by month and that monthly and yearly spatial risk factors do not necessarily overlap. The study also found that risk terrain models retain their predictive validity on a short-term basis. The results are further discussed in relation to whether the same areas are high-risk throughout the course of the year.

Public Safety Trends in MAP Communities and Matched Comparison Areas

Public Safety Trends in MAP Communities and Matched Comparison Areas

Was the presence of the MAP initiative in some NYCHA developments associated with greater improvements in crime and victimization outcomes compared with the same outcomes in NYCHA developments not involved in MAP? The results presented here do not answer the question in full, but they offer an early look at efforts by the research team to generate more precise answers. Additional analyses are needed to rule out competing explanations and to examine the complex series of relationships among all the study’s variables. Based on the preliminary findings in this report, however, the results of MAP to date may be considered promising.

Measurement Plan and Analytic Strategies for Evaluating the Mayor’s Action Plan for Neighborhood Safety

Measurement Plan and Analytic Strategies for Evaluating the Mayor’s Action Plan for Neighborhood Safety

This second in a series of reports about the evaluation of the New York City Mayor’s Action Plan for Neighborhood Safety (MAP). This Evaluation Update: summarizes the goals and methods used to evaluate the Mayor’s Action Plan; describes the quasi-experimental design used to test the outcomes and impacts of MAP as well as the data sources assembled by the research team and how they are used; and portrays a logical framework the research team used initially to identify causal pathways through which various elements of MAP were intended to achieve their desired effect.