A research paper is a formal recording of the findings of a detailed research after evaluating of the sources of information and a critical analysis. It is not just a compilation of all the primary and secondary sources of information related to the research topic. The conclusions of the researcher and his thought process in arriving at these conclusions must be set out concisely.
But this is not the same for every person. It will be easier for some to know while it will be difficult for others to know. Thus ideas should be based on principles and these principles should be what should guide you from concept to completion. Once you have gotten what you want to bring out in your topic it will be used throughout your research as the main idea and this will run from the introduction of your research paper right up to the conclusion. Remember that the idea in the research paper may be easy to be determined or it may be implied. Also more than one idea may be found in the research paper.