You can find articles testifying that all three of the previous claims are true; however, when you dig deeper, it’s clear that they’re not. Just because you find one article stating that something is true, that does not necessarily mean it is a proven fact that you can use in your research.
But, what is important to remember, is that this is just a starting point. Many students stop right there, and then don’t understand why their instructor graded them poorly on their thesis statement. A thesis needs to be definitive, and should not be about you.
Any information that doesn’t fit within the framework of your outline, and doesn’t directly support your thesis statement, no matter how interesting, doesn’t belong in your research paper. Keep your focus narrow and avoid the kitchen sink approach.
Work to understand all of the different viewpoints and schools of thought on your topic. This can be done by reading a variety of articles, reading a book or article that gives an overview of the topic and incorporates different points of view, or talking to an expert who can explain the topic in depth.
It might make sense to bookmark resources on your web browser or make a digital bibliography that allows you to link the resources you found. You might prefer a printed list of your resources or you might want to write down all you have learned that is relevant to your project on notecards or sticky notes and organize your research paper on a table or the floor.