The material used can be categorized as primary sources, which are original materials that are not created after the fact with the benefit of hindsight, and secondary sources that cite, comment, or bu...The material used can be categorized as primary sources, which are original materials that are not created after the fact with the benefit of hindsight, and secondary sources that cite, comment, or build upon primary sources. While sociological research involving documents is one of the less interactive research options available to sociologists, it can reveal a great deal about the norms, values, and beliefs of people belonging to a particular temporal and cultural context.