With a clear idea on the style in which a research paper needs to be written, you can ensure a decent grade. A Chicago style paper is different from other commonly used styles. Though the content of the paper is different in more than one aspect, it is true that the style of presentation can vary. There are many styles that are followed in various educational institutions today. You have the APA, MLA, Chicago or Turabian or the Harvard style of presentation. The specific style that needs to be used is often determined by the university or college and in many cases, also depends on the subject that the paper is written in. For instance the Chicago style paper is often used by students of non-Science subjects like Sociology, Economics, Politics, Philosophy and so on. It is also possible that action research papers are written in a particular style whereas an analysis essay follows yet another.