8.2 The Topic, General Purpose, Specific Purpose, and Thesis
Before any work can be done on crafting the body of your speech or presentation, you must first do some prep work—selecting a topic, formulating a general purpose, a specific purpose statement, and crafting a central idea, or thesis statement. In doing so, you lay the foundation for your speech by making important decisions about what you will speak about and for what purpose you will speak. These decisions will influence and guide the entire speechwriting process, so it is wise to think carefully and critically during these beginning stages.
Understanding the General Purpose
Before any work on a speech can be done, the speaker needs to understand the general purpose of the speech. The general purpose is what the speaker hopes to accomplish and will help guide in the selection of a topic. The instructor generally provides the general purpose for a speech, which falls into one of three categories. A general purpose to inform would mean that the speaker is teaching the audience about a topic, increasing their understanding and awareness, or providing new information about a topic the audience might already know. Informative speeches are designed to present the facts, but not give the speaker’s opinion or any call to action. A general purpose to persuade would mean that the speaker is choosing the side of a topic and advocating for their side or belief. The speaker is asking the audience to believe in their stance, or to take an action in support of their topic. A general purpose to entertain often entails short speeches of ceremony, where the speaker is connecting the audience to the celebration. You can see how these general purposes are very different. An informative speech is just facts, the speaker would not be able to provide an opinion or direction on what to do with the information, whereas a persuasive speech includes the speaker’s opinions and direction on what to do with the information. Before a speaker chooses a topic, they must first understand the general purpose.
Selecting a Topic
Generally, speakers focus on one or more interrelated topics—relatively broad concepts, ideas, or problems that are relevant for particular audiences. The most common way that speakers discover topics is by simply observing what is happening around them—at their school, in their local government, or around the world. Opportunities abound for those interested in engaging speech as a tool for change. Perhaps the simplest way to find a topic is to ask yourself a few questions, including:
- What important events are occurring locally, nationally, and internationally?
- What do I care about most?
- Is there someone or something I can advocate for?
- What makes me angry/happy?
- What beliefs/attitudes do I want to share?
- Is there some information the audience needs to know?
Students speak about what is interesting to them and their audiences. What topics do you think are relevant today? There are other questions you might ask yourself, too, but these should lead you to at least a few topical choices. The most important work that these questions do is to locate topics within your pre-existing sphere of knowledge and interest. Topics should be ideas that interest the speaker or are part of their daily lives. In order for a topic to be effective, the speaker needs to have some credibility or connection to the topic; it would be unfair to ask the audience to donate to a cause that the speaker has never donated to. There must be a connection to the topic for the speaker to be seen as credible. David Zarefsky (2010) also identifies brainstorming as a way to develop speech topics, a strategy that can be helpful if the questions listed above did not yield an appropriate or interesting topic. Brainstorming involves looking at your daily activities to determine what you could share with an audience. Perhaps if you work out regularly or eat healthy, you could explain that to an audience, or demonstrate how to dribble a basketball. If you regularly play video games, you may advocate for us to take up video games or explain the history of video games. Anything that you find interesting or important might turn into a topic. Starting with a topic you are already interested in will make writing and presenting your speech a more enjoyable and meaningful experience. It means that your entire speechwriting process will focus on something you find important and that you can present this information to people who stand to benefit from your speech. At this point, it is also important to consider the audience before choosing a topic. While we might really enjoy a lot of different things that could be topics, if the audience has no connection to that topic, then it wouldn’t be meaningful for the speaker or audience. Since we always have a diverse audience, we want to make sure that everyone in the audience can gain some new information from the speech. Sometimes, a topic might be too complicated to cover in the amount of time we have to present, or involve too much information then that topic might not work for the assignment, and finally if the audience can not gain anything from a topic then it won’t work. Ultimately, when we choose a topic we want to pick something that we are familiar with and enjoy, we have credibility and that the audience could gain something from. Once you have answered these questions and narrowed your responses, you are still not done selecting your topic. For instance, you might have decided that you really care about breeds of dogs. This is a very broad topic and could easily lead to a dozen different speeches. To resolve this problem, speakers must also consider the audience to whom they will speak, the scope of their presentation, and the outcome they wish to achieve.
Formulating the Purpose Statements
By honing in on a very specific topic, you begin the work of formulating your purpose statement. In short, a purpose statement clearly states what it is you would like to achieve. Purpose statements are especially helpful for guiding you as you prepare your speech. When deciding which main points, facts, and examples to include, you should simply ask yourself whether they are relevant not only to the topic you have selected, but also whether they support the goal you outlined in your purpose statement. The general purpose statement of a speech may be to inform, to persuade, to celebrate, or to entertain. Thus, it is common to frame a specific purpose statement around one of these goals. According to O’Hair, Stewart, and Rubenstein, a specific purpose statement “expresses both the topic and the general speech purpose in action form and in terms of the specific objectives you hope to achieve” (2004). The specific purpose is a single sentence that states what the audience will gain from this speech, or what will happen at the end of the speech. The specific purpose is a combination of the general purpose and the topic and helps the speaker to focus in on what can be achieved in a short speech.
To go back to the topic of a dog breed, the general purpose might be to inform, a specific purpose might be: To inform the audience about how corgis became household pets. If the general purpose is to persuade the specific purpose might be: to persuade the audience that dog breeds deemed “dangerous” should not be excluded from living in the cities. In short, the general purpose statement lays out the broader goal of the speech while the specific purpose statement describes precisely what the speech is intended to do. The specific purpose should focus on the audience and be measurable, if I were to ask the audience before I began the speech how many people know how corgis became household pets, they could raise their hand, and if I ask at the end of my speech how many people know how corgis became household pets, I should see a lot more hands. The specific purpose is the “so what” of the speech, it helps the speaker focus on the audience and take a bigger idea of a topic and narrow it down to what can be accomplished in a short amount of time.
Writing the Thesis Statement
The specific purpose statement is a tool that you will use as you write your speech, but it is unlikely that it will appear verbatim in your speech. Instead, you will want to convert the specific purpose statement into a central idea, or thesis statement that you will share with your audience. Just like in a written paper, where the thesis comes in the first part of the paper, in a speech, the thesis comes within the first few sentences of the speech. The thesis must be stated and tells the audience what to expect in this speech. A thesis statement may encapsulate the main idea of a speech in just a sentence or two and be designed to give audiences a quick preview of what the entire speech will be about. The thesis statement should be a single, declarative statement followed by a separate preview statement. If you are a Harry Potter enthusiast, you may write a thesis statement (central idea) the following way using the above approach: J.K. Rowling is a renowned author of the Harry Potter series with a Cinderella-like story of a rise to fame.
Writing the Preview Statement
A preview statement (or series of statements) is a guide to your speech. This is the part of the speech that literally tells the audience exactly what main points you will cover. If you were to get on any freeway, there would be a green sign on the side of the road that tells you what cities are coming up—this is what your preview statement does; it tells the audience what points will be covered in the speech. Best of all, you would know what to look for! So, if we take our J.K Rowling example, the thesis and preview would look like this: J.K. Rowling is a renowned author of the Harry Potter series with a Cinderella-like rags-to-riches story. First, I will tell you about J.K. Rowling’s humble beginnings. Then, I will describe her personal struggles as a single mom. Finally, I will explain how she overcame adversity and became one of the richest women in the United Kingdom.
Writing the Body of Your Speech
Once you have finished the important work of deciding what your speech will be about, as well as formulating the purpose statement and crafting the thesis, you should turn your attention to writing the body of your speech. The body of your speech consists of 3–4 main points that support your thesis and help the audience to achieve the specific purpose. Creating main points helps to chunk the information you are sharing with your audience into an easy-to-understand organization. Choosing your main points will help you focus in on what information you want to share with the audience in order to prove your thesis. Since we can’t tell the audience everything about our topic, we need to choose our main points to make sure we can share the most important information with our audience. All of your main points are contained in the body, and normally this section is prepared well before you ever write the introduction or conclusion. The body of your speech will consume the largest amount of time to present, and it is the opportunity for you to elaborate on your supporting evidence, such as facts, statistics, examples, and opinions that support your thesis statement and do the work you have outlined in the specific purpose statement. Combining these various elements into a cohesive and compelling speech, however, is not without its difficulties, the first of which is deciding which elements to include and how they ought to be organized to best suit your purpose.
clearly states what it is you would like to achieve
“expresses both the topic and the general speech purpose in action form and in terms of the specific objectives you hope to achieve” (O'Hair, Stewart, & Rubenstein, 2004)
single, declarative sentence that captures the essence or main point of your entire presentation
It’s About Them: Public Speaking in the 21st Century Copyright © 2022 by LOUIS: The Louisiana Library Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License , except where otherwise noted.
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