Some of the disadvantages appear when bought or spent time searching for them. It may be not covered with something we need, we cannot know the information bias whether or not know they came from. Secondary research will guide the way we need to conduct primary research. It can give ideas about what should be asked questions, but more importantly, it can help to decide what type of action should be quantitative or qualitative research and how to define and quantify the answer as a meaningful result. (Hyman & Sierra, 2010)