As you move forward in your research, you will encounter new knowledge that may challenge or reinforce what you think you already know. That is OK, and we often encounter confusion in the early stages of our research. The more experienced researcher however, will begin to compare prior knowledge with newly acquired knowledge, At some point the researcher needs to select information that provides evidence for the topic, and reject or accept certain viewpoints encountered.
A topic such as Capital Punishment can provide an excellent example of this process. If we start from the premise of whether or not it is an effective deterrent to homicide, we can begin to understand this process more fully. A topic such as this will incorporate different forms of knowledge, including information from the Web, from books, from scholarly journal research articles, and from government reports, to name just some that may be used.