What is the difference between a general and specific purpose statement?

Learning Objectives

Identify the specific purpose of a speech.
Explain how to formulate a central idea statement for a speech.

The general purpose of most speeches will fall into one of four categories: to inform, to persuade, to entertain, and to commemorate or celebrate. The first step of defining the purpose of your speech is to think about which category best describes your overall goal with the speech. What do you want your audience to think, feel, or do as a consequence of hearing you speak? Often, the general purpose of your speech will be defined by the speaking situation. If you’re asked to run a training session at work, your purpose isn’t to entertain but rather to inform. Likewise, if you are invited to introduce the winner of an award, you’re not trying to change the audience’s mind about something; you’re honoring the recipient of the award. In a public speaking class, your general purpose may be included in the assignment: for instance, “Give a persuasive speech about . . . .” When you’re assigned a speech project, you should always make sure you know whether the general purpose is included in the assignment or whether you need to decide on the general purpose yourself.

Table of Contents Show

Learning Objectives
Specific Purpose
Formulating a Central Idea Statement

Specific Purpose

Now that you know your general purpose (to inform, to persuade, or to entertain), you can start to move in the direction of the specific purpose. A specific purpose statement builds on your general purpose and makes it more specific (as the name suggests). So if your first speech is an informative speech, your general purpose will be to inform your audience about a very specific realm of knowledge.

In writing your specific purpose statement, you will take three contributing elements and bring them together to help you determine your specific purpose:

You (your interests, your background, experience, education, etc.)
Your audience
The context or setting

There are three elements that combine to create a specific purpose statements: your own interests and knowledge, the interests and needs of your audience, and the context or setting in which you will be speaking.

Keeping these three inputs in mind, you can begin to write a specific purpose statement, which will be the foundation for everything you say in the speech and a guide for what you do not say. This formula will help you in putting together your specific purpose statement:

To _______________ [Specific Communication Word (inform, explain, demonstrate, describe, define, persuade, convince, prove, argue)] _______________ [Target Audience (my classmates, the members of the Social Work Club, my coworkers] __________________. [The Content (how to bake brownies, that Macs are better than PCs].

Example: The purpose of my presentation is to demonstrate to my coworkers the value of informed intercultural communication.

Formulating a Central Idea Statement

While you will not actually say your specific purpose statement during your speech, you will need to clearly state what your focus and main points are going to be. The statement that reveals your main points is commonly known as the central idea statement (or just the central idea). Just as you would create a thesis statement for an essay or research paper, the central idea statement helps focus your presentation by defining your topic, purpose, direction, angle, and/or point of view. Here are two examples:

Specific Purpose—To explain to my classmates the effects of losing a pet on the elderly.
- Central Idea—When elderly persons lose their animal companions, they can experience serious psychological, emotional, and physical effects.
Specific Purpose—To demonstrate to my audience the correct method for cleaning a computer keyboard.
- Central Idea—Your computer keyboard needs regular cleaning to function well, and you can achieve that in four easy steps.

Please note that your central idea will emerge and evolve as you research and write your speech, so be open to where your research takes you and anticipate that formulating your central idea will be an ongoing process.

Below are four guidelines for writing a strong central idea.

Your central idea should be one, full sentence.
Your central idea should be a statement, not a question.
Your central idea should be specific and use concrete language.
Each element of your central idea should be related to the others.

Using the topic “Benefits of Yoga for College Students’ Stress,” here are some correct and incorrect ways to write a central idea.

Strong formulation of the central idea	Weak formulation of the central idea
Yoga practice can help college students improve the quality of their sleep, improve posture, and manage anxiety.	Yoga is great for many things. It can help you sleep better and not be so stiff. Yoga also helps you feel better. (This central idea is not one sentence and uses vague words.)
Yoga practice can help college students focus while studying, manage stress, and increase mindfulness.	What are the benefits of yoga for college students? (This central idea should be a statement, not a question.)
Yoga is an inclusive, low-impact practice that offers mental and physical benefits for a beginning athlete, a highly competitive athlete, and everyone in between.	Yoga is great and everyone should try it! (This central idea uses vague language.)
Yoga practice can help college students develop mindfulness so they can manage anxiety, increase their sense of self-worth, and improve decision-making.	Yoga practice increases mindfulness, but can lead to some injuries and it takes at least 200 hours of training to become an instructor. (The elements of this central idea are not related to one another.)

A strong central idea shows that your speech is focused around a clear and concise topic and that you have a strong sense of what you want your audience to know and understand as a result of your speech. Again, it is unlikely that you will have a final central idea before you begin your research. Instead, it will come together as you research your topic and develop your main points.

Understand the process of extending a general purpose into a specific purpose.
Integrate the seven tips for creating specific purposes.

Once you have chosen your general purpose and your topic, it’s time to take your speech to the next phase and develop your specific purpose. A specific purpose starts with one of the three general purposes and then specifies the actual topic you have chosen and the basic objective you hope to accomplish with your speech. Basically, the specific purpose answers the who, what, when, where, and why questions for your speech.

When attempting to get at the core of your speech (the specific purpose), you need to know a few basic things about your speech. First, you need to have a general purpose. Once you know whether your goal is to inform, persuade, or entertain, picking an appropriate topic is easier. Obviously, depending on the general purpose, you will have a range of different types of topics. For example, let’s say you want to give a speech about hygiene. You could still give a speech about hygiene no matter what your general purpose is, but the specific purpose would vary depending on whether the general purpose is to inform (discussing hygiene practices around the globe), to persuade (discussing why people need to adopt a specific hygiene practice), or to entertain (discussing some of the strange and unique hygiene practices that people have used historically). Notice that in each of these cases, the general purpose alters the topic, but all three are still fundamentally about hygiene.

Now, when discussing specific purposes, we are concerned with who, what, when, where, why, and how questions for your speech. Let’s examine each of these separately. First, you want to know who is going to be in your audience. Different audiences, as discussed in the chapter on audience analysis, have differing desires, backgrounds, and needs. Keeping your audience first and foremost in your thoughts when choosing a specific purpose will increase the likelihood that your audience will find your speech meaningful.

Second is the “what” question, or the basic description of your topic. When picking an effective topic, you need to make sure that the topic is appropriate for a variety of constraints or limitations within a speaking context.

Third, you need to consider when your speech will be given. Different speeches may be better for different times of the day. For example, explaining the importance of eating breakfast and providing people with cereal bars may be a great topic at 9:00 a.m. but may not have the same impact if you’re giving it at 4:00 p.m.

Fourth, you need to consider where your speech will be given. Are you giving a speech in front of a classroom? A church? An executive meeting? Depending on the location of your speech, different topics may or may not be appropriate.

The last question you need to answer within your speech is why. Why does your audience need to hear your speech? If your audience doesn’t care about your specific purpose, they are less likely to attend to your speech. If it’s a topic that’s a little more off-the-wall, you’ll really need to think about why they should care.

Once you’ve determined the who, what, when, where, and why aspects of your topic, it’s time to start creating your actual specific purpose. First, a specific purpose, in its written form, should be a short, declarative sentence that emphasizes the main topic of your speech. Let’s look at an example:

In this example, we’ve quickly narrowed a topic from a more general topic to a more specific topic. Let’s now look at that topic in terms of a general purpose and specific purpose:

For the purpose of this example, we used the same general topic area, but demonstrated how you could easily turn the topic into either an informative speech or a persuasive speech. In the first example, the speaker is going to talk about the danger embedded journalists face. In this case, the speaker isn’t attempting to alter people’s ideas about embedded journalists, just make them more aware of the dangers. In the second case, the specific purpose is to persuade a group of journalism students (the audience) to avoid jobs as embedded journalists.

To form a clear and succinct statement of the specific purpose of your speech, start by naming your general purpose (to inform, to persuade, or to entertain). Follow this by a capsule description of your audience (my peers in class, a group of kindergarten teachers, etc.). Then complete your statement of purpose with a prepositional phrase (a phrase using “to,” “about,” “by,” or another preposition) that summarizes your topic. As an example, “My specific purpose is to persuade the students in my residence hall to protest the proposed housing cost increase” is a specific statement of purpose, while “My speech will be about why we should protest the proposed housing cost increase” is not.

Specific purposes should be statements, not questions. If you find yourself starting to phrase your specific purpose as a question, ask yourself how you can reword it as a statement. Table 6.3 “My Specific Purpose Is…” provides several more examples of good specific purpose statements.

Table 6.3 My Specific Purpose Is…

General Purpose	Audience	Topic
To inform	my audience	about the usefulness of scrapbooking to save a family’s memories.
To persuade	a group of kindergarten teachers	to adopt a new disciplinary method for their classrooms.
To entertain	a group of executives	by describing the lighter side of life in “cubicle-ville.”
To inform	community members	about the newly proposed swimming pool plans that have been adopted.
To persuade	my peers in class	to vote for me for class president.
To entertain	the guests attending my mother’s birthday party	by telling a humorous story followed by a toast.

Now that we’ve examined what specific purposes are, we are going to focus on a series of tips to help you write specific purposes that are appropriate for a range of speeches.

First and foremost, you always need to think about your intended audience when choosing your specific purpose. In the previous section, we talked about a speech where a speaker is attempting to persuade a group of journalism students to not take jobs as embedded journalists. Would the same speech be successful, or even appropriate, if given in your public speaking class? Probably not. As a speaker, you may think your topic is great, but you always need to make sure you think about your audience when selecting your specific purpose. For this reason, when writing your specific purpose, start off your sentence by including the words “my audience” or actually listing the name of your audience: a group of journalism students, the people in my congregation, my peers in class, and so on. When you place your audience first, you’re a lot more likely to have a successful speech.

After your audience, the second most important consideration about your specific purpose pertains to the rhetorical situation of your speech. The rhetorical situation is the set of circumstances surrounding your speech (e.g., speaker, audience, text, and context). When thinking about your specific purpose, you want to ensure that all these components go together. You want to make sure that you are the appropriate speaker for a topic, the topic is appropriate for your audience, the text of your speech is appropriate, and the speech is appropriate for the context. For example, speeches that you give in a classroom may not be appropriate in a religious context and vice versa.

The specific purpose statement for any speech should be direct and not too broad, general, or vague. Consider the lack of clarity in the following specific purpose: “To persuade the students in my class to drink more.” Obviously, we have no idea what the speaker wants the audience to drink: water, milk, orange juice? Alcoholic beverages? Furthermore, we have no way to quantify or make sense of the word “more.” “More” assumes that the students are already drinking a certain amount, and the speaker wants them to increase their intake. If you want to persuade your listeners to drink eight 8-ounce glasses of water per day, you need to say so clearly in your specific purpose.

Another way in which purpose statements are sometimes unclear comes from the use of colloquial language. While we often use colloquialisms in everyday life, they are often understood only by a limited number of people. It may sound like fun to have a specific purpose like, “To persuade my audience to get jiggy,” but if you state this as your purpose, many people probably won’t know what you’re talking about at all.

You cannot hope to solve the entire world’s problems in one speech, so don’t even try. At the same time, you also want to make sure that you stick to one specific purpose. Chances are it will be challenging enough to inform your audience about one topic or persuade them to change one behavior or opinion. Don’t put extra stress on yourself by adding topics. If you find yourself using the word “and” in your specific topic statement, you’re probably doubling up on topics.

When choosing your specific purpose, it’s important to determine whether it can be realistically covered in the amount of time you have. Time limits are among the most common constraints for students in a public speaking course. Usually speeches early in the term have shorter time limits (three to five minutes), and speeches later in the term have longer time limits (five to eight minutes). While eight minutes may sound like an eternity to be standing up in front of the class, it’s actually a very short period of time in which to cover a topic. To determine whether you think you can accomplish your speech’s purpose in the time slot, ask yourself how long it would take to make you an informed person on your chosen topic or to persuade you to change your behavior or attitudes.

If you cannot reasonably see yourself becoming informed or persuaded during the allotted amount of time, chances are you aren’t going to inform or persuade your audience either. The solution, of course, is to make your topic narrower so that you can fully cover a limited aspect of it.

Moving from a general to specific purpose requires you to identify the who, what, when, where, and why of your speech.
State your specific purpose in a sentence that includes the general purpose, a description of the intended audience, and a prepositional phrase summarizing the topic.
When creating a specific purpose for your speech, first, consider your audience. Second, consider the rhetorical situation. Make sure your specific purpose statement uses clear language, and that it does not try to cover more than one topic.
Make sure you can realistically accomplish your specific purpose within the allotted time.