Final answer:
Using a library database, online encyclopedia, or dictionary to find a speech topic is an initial form of research that helps identify and narrow down potential topics by providing background information and pathways to more authoritative sources.
Step-by-step explanation:
Using resources such as a library database, online encyclopedia, or dictionary to find a speech topic can broadly be categorized as preliminary research. These resources allow you to gather background information and introduce you to new concepts which could lead to more in-depth material. Library databases and encyclopedias offer a basic understanding and often provide helpful bibliographic information to aid in finding more substantial, scholarly sources. A smart approach is to start with these general sources to get acquainted with a topic and then narrow down the field of research by filtering through more specialized databases or journals, which may include peer-reviewed articles that add credibility to your work.
When choosing and narrowing your topic, brainstorming and engaging with recent issues in related academic journals can help shape your direction. Reference librarians are an invaluable resource in this process as they can guide you towards the most relevant databases and help you navigate the search process effectively. Once a working thesis is established, the process becomes recursive as you may find new perspectives prompting further investigation, enriching your analysis and providing a more persuasive argument for your final presentation or script.