Psychology Research paper?????????????????????????…

im working on a psychology research paper, and my thesis statement is does music cause cause violent behavior? I must do this paper in MLA format. I want to put different research studies in the paper on both sides of the issue but every time i find ana rticle it says studies show... blah blah blah and doesn't tell you WHAT studies, my teacher needs us to be specific. Could you help me find some good information on both sides of the issue??