Post a critique of the research study in which you: Evaluate the authors’ use of literature. Evaluate the research problem. Explain what it means for a research study to be justified and grounded in the literature; then, explain what it means for a problem to be original. Problem Statement Checklist Use the following criteria to evaluate an author’s problem statement: • Is a problem identified that leads to the need for this study? • Is a rationale or justification for the problem clearly stated? • Is the problem framed in a way that is consistent with the research approach? • Does the statement convey how the study will address the problem? • Are the citations to literature current (i.e., within the past 5 years with the exception of seminal works)? Use this article to write essay: References Forster, M., Grigsby, T. J., Unger, J. B., & Sussman, S. (2015). Associations between gun violence exposure, gang associations, and youth aggression: Implications for prevention and intervention programs. Journal of Criminology,  doi:http://dx.doi.org/10.1155/2015/963750