Background/Context: Children and adolescents worldwide are often exposed to community violence, including homicides, assaults, and gang-related activities. Such exposure can disrupt developmental processes, heightening stress responses that impair self-regulation, emotional stability, and cognitive function. Previous meta-analyses have documented significant negative associations between community violence and child outcomes; however, many rely on correlational evidence and self-reported measures of exposure, which limit causal inference. Recent research utilizing objective measures of violence, such as geocoded crime reports and quasi-experimental designs, offers a more rigorous understanding of how acute exposure to violent crimes affects children. This metaanalysis systematically synthesizes this emerging body of evidence, focusing on studies using causal designs to estimate the impact of objectively measured exposure to community violence on child and adolescent outcomes. Purpose/Objective/Research Question: This meta-analysis aims to provide an evidencebased assessment of how acute exposure to community violence causally affects children and adolescents, addressing gaps in the literature related to the type of exposure (direct vs. indirect), measurement approach (self-reported vs. objective), and methodological rigor (correlational vs. causal). Specifically, this study seeks to answer the following research questions: (1) What is the range of estimated causal effects of exposure to community violence on child and adolescent outcomes?; (2) How do these effects vary by outcome type (e.g., academic, behavioral, mental health)?; (3) Are the effects of community violence different for younger versus older children?; (4) How does the proximity of violence in time and distance influence these effects?; (5) Does chronic exposure to community violence desensitize children, altering their reactivity to new incidents?; and (6) Do different types of violent crimes affect children similarly? Setting: The studies included in this meta-analysis are drawn from diverse geographic contexts, including the United States and other countries where geocoded crime data and quasi-experimental methodologies have been applied to examine the impact of community violence on children. Population/Participants/Subjects: The meta-analysis includes studies that examine children and adolescents (ages 0-18) exposed to community violence, as defined by objective measures such as reported crimes within a specified radius of their homes or schools. The included studies analyze various child outcomes, including academic performance, behavioral and emotional well-being, and cognitive development. Intervention/Program/Practice: Although this study does not analyze a specific intervention, it synthesizes research with implications for interventions and policy responses. Understanding the causal effects of acute, objectively measured exposure to violent crimes--such as homicides occurring near a child's home or school--can inform strategies to mitigate harm. This meta-analysis highlights key moderators that may shape the effectiveness of school- and community-based interventions. Research Design: This meta-analysis follows a systematic approach to identifying and synthesizing studies that meet strict inclusion criteria. Only studies employing quasiexperimental or experimental designs that use objective measures of community violence are included. These designs leverage exogenous variation in exposure--such as violent crimes occurring shortly before assessments--to estimate causal effects. Studies relying solely on self-reported exposure measures or correlational analyses are excluded to enhance causal inference. Data Collection and Analysis: A systematic literature search was conducted using multiple databases (e.g., PubMed, PsycINFO, EconLit, ERIC). Studies were screened for eligibility based on pre-specified inclusion criteria, and effect sizes were extracted for meta-analytic synthesis. Random-effects models were used to estimate pooled effect sizes and assess heterogeneity. Moderator analyses were conducted to explore how study characteristics--such as child age, crime type, and timing of exposure--affect outcomes. Sensitivity analyses were conducted to assess the robustness of the findings, taking into account publication bias and study quality. Findings/Results: A total of 24 unique studies met our inclusion criteria, contributing 1,750 effect sizes. Using a multilevel meta-regression approach, we estimate an overall effect of acute exposure to community violence of -0.04 standard deviations across subsamples. Timing was a key moderator: exposure within a two-week window had a more pronounced negative effect, increasing by up to -0.06 standard deviations in some samples. Moderator analyses further indicate that the proximity of violence affects outcomes differently. When violent events occur within a two-week window, the negative effects on children are significantly larger. In contrast, greater spatial distance from the incident is associated with smaller effects, suggesting that immediate environmental proximity may amplify stress responses. Additionally, when restricting the analysis to homicides specifically, estimated effects are close to zero. This may reflect the lower frequency of homicides relative to other crimes, limiting statistical power in these studies. Tests for publication bias indicate limited evidence of p-hacking. However, statistical power remains a challenge, with most observed effects falling below the detection threshold of 8-15% of a standard deviation. These findings underscore the need for larger, well-powered studies that refine exposure definitions and account for heterogeneity in how violence affects child outcomes. Conclusions: This meta-analysis provides rigorous evidence on the causal effects of community violence exposure on children, highlighting the importance of objective measures and quasi-experimental designs in advancing knowledge in this field. The findings emphasize the heightened vulnerability of young children to acute environmental stressors and reinforce the need for targeted interventions. Policymakers and practitioners can utilize these insights to design school- and community-based programs that buffer children from the developmental consequences of violence. Future research should examine long-term effects and the mechanisms through which exposure influences outcomes, ensuring that interventions are both timely and effective. Prioritizing well-powered, causal studies can refine policies that protect children in high-violence areas and support their academic and developmental trajectories.