18.2: Researching and Supporting Your Speech

Examples

An example is a cited case that is representative of a larger whole. Examples are especially beneficial when presenting information that an audience may not be familiar with. They are also useful for repackaging or reviewing information that has already been presented. Examples can be used in many ways, so you should let your audience, purpose and thesis, and research materials guide your use. You may pull examples directly from your research materials, making sure to cite the source. The following is an example used in a speech about the negative effects of standardized testing: “Standardized testing makes many students anxious, and even ill. On March 14, 2002, the Sacramento Bee reported that some standardized tests now come with instructions indicating what teachers should do with a test booklet if a student throws up on it.” You may also cite examples from your personal experience, but only in more informal environments (not if a formal speech/ presentation is expected).

You may also use hypothetical examples, which can be useful when you need to provide an example that is extraordinary or goes beyond most people’s direct experience. Capitalize on this opportunity by incorporating vivid description into the example that appeals to the audience’s senses. Always make sure to indicate when you are using a hypothetical example, as it would be unethical to present an example as real when it is not. Including the word imagine or something similar in the first sentence of the example can easily do this.

Whether real or hypothetical, examples used as supporting material can be brief or extended. Brief examples are usually one or two sentences, whereas extended examples, sometimes called illustrations, are several sentences long and can be effective in introductions or conclusions to get the audience’s attention or leave a lasting impression. It is important to think about relevance and time limits when considering using an extended illustration. Since most speeches are given within time constraints, make sure the extended illustration is relevant to your speech purpose and thesis and that it doesn’t take up a disproportionate amount of the speech. If a brief example or series of brief examples would convey the same content and create the same tone as the extended example, opt for brevity.

Explanations

Explanations clarify ideas by providing information about what something is, why something is the way it is, or how something works or came to be. One of the most common types of explanation is a definition. Definitions do not have to come from the dictionary. Many times, authors define their concepts as they use them in their writing, which is a good alternative to a dictionary definition.

You do not need to provide definitions when information is common knowledge. Anticipate audience confusion and define legal, medical, or other forms of jargon as well as slang and foreign words. Keep in mind that repeating a definition verbatim from a dictionary often leads to fluency hiccups, because definitions are not written to be read aloud. It’s a good idea to put the definition into your own words (still remembering to cite the original source) to make it easier for you to deliver.

Other explanations focus on the “why” and “how” of a concept. We use explanations as verbal clarifications to support our claims in daily conversations, perhaps without even noticing it. Consciously incorporating clear explanations into your speech/ presentation can help you achieve your goals.

Statistics

Statistics  are numerical representations of information. Most audiences find them highly credible and relevant, as evidenced by their frequent use by news agencies, government offices, politicians, and academics. Unfortunately, statistics are often misused by speakers who intentionally or unintentionally misconstrue the numbers to support their argument without examining the context from which the statistic emerged. All statistics are contextual, so plucking a number out of a news article or a research study and including it in your speech/ presentation without taking the time to understand the statistic is unethical.

Although statistics are popular as supporting evidence, they can also be boring. There will inevitably be people in your audience who are not good at processing numbers. Even people who are good with numbers have difficulty processing through a series of statistics presented orally. Remember that we have to adapt our information to listeners who don’t have the luxury of pressing a pause or rewind button. For these reasons, it’s a good idea to avoid using too many statistics and to use startling examples when you do use them. Startling statistics should defy our expectations. When you give the audience a large number that they would expect to be smaller, or vice versa, you will be more likely to engage them, as the following example shows: “Did you know that, until a decade ago, 1.3 billion people in the world did not have access to electricity? That’s about 20 percent of the world’s population according to a 2009 study on the International Energy Agency’s official website. More recent statistics show a significant improvement. For instance, …”

You should also repeat key statistics at least once for emphasis. In the previous example, the first time we hear the statistic 1.3 billion, we don’t have any context for the number. Translating that number into a percentage in the next sentence repeats the key statistic, which the audience now has context for, and repackages the information into a percentage, which some people may better understand. You should also round long numbers up or down to make them easier to speak. Make sure that rounding the number doesn’t distort its significance. Rounding 1,298,791,943 to 1.3 billion, for example, makes the statistic more manageable and doesn’t alter the basic meaning. It is also beneficial to translate numbers into something more concrete for visual or experiential learners by saying, for example, “That’s four times the population of the Unites States.” While it may seem easy to throw some numbers in your speech to add to your credibility, it takes work to make them impactful, memorable, and effective.

Analogies

Analogies involve a comparison of ideas, items, or circumstances. When you compare two things that actually exist, you are using a literal analogy—for example, “Germany and Sweden are both European countries that have had nationalized health care for decades.” Another type of literal comparison is a historical analogy. In a famous 1992 speech to the Republican National Convention, Mary Fisher compared the silence of many US political leaders regarding the HIV/AIDS crisis to that of many European leaders in the years before the Holocaust:

A figurative analogy compares things that are not normally related, often relying on metaphor, simile, or other figurative language devices. In the following example, wind and revolution are compared: “Just as the wind brings changes in the weather, so does revolution bring change to countries.”

When you compare differences, you are highlighting contrast—for example, “Although the United States is often thought of as the most medically advanced country in the world, other Western countries with nationalized health care have lower infant mortality rates and higher life expectancies.” To use analogies effectively and ethically, you must choose ideas, items, or circumstances to compare that are similar enough to warrant the analogy. The more similar the two things you’re comparing, the stronger your support. If an entire speech on nationalized health care was based on comparing the United States and Sweden, then the analogy isn’t too strong, since Sweden has approximately the same population as the state of North Carolina. Using the analogy without noting this large difference would be misrepresenting your supporting material. You could disclose the discrepancy and use other forms of supporting evidence to show that despite the population difference the two countries are similar in other areas to strengthen your speech.

Testimony

Testimony is quoted information from people with direct knowledge about a subject or situation. Expert testimony is from people who are credentialed or recognized experts in a given subject. Lay testimony is often a recounting of a person’s experiences, which is more subjective. Both types of testimony are valuable as supporting material. We can see this in the testimonies of people in courtrooms and other types of hearings. Lawyers know that juries want to hear testimony from experts, eyewitnesses, and friends and family.

When Toyota cars were malfunctioning and being recalled in 2010, mechanics and engineers were called to testify about the technical specifications of the car (expert testimony), and car drivers like the soccer mom who recounted the brakes on her Prius suddenly failing while she was driving her kids to practice were also called (lay testimony) (see Cole, 2011 for additional details on this scandal). When using testimony, make sure you indicate whether it is expert or lay by sharing with the audience the context of the quote. Share the credentials of experts (education background, job title, years of experience, etc.) to add to your credibility or give some personal context for the lay testimony (eyewitness, personal knowledge, etc.). Include lay testimony only if fully relevant to your topic.

Visual Aids

Visual aids help a speaker reinforce speech content visually, which helps amplify the speaker’s message. They can be used to present any of the types of supporting materials discussed previously. Speakers rely heavily on an audience’s ability to learn by listening, which may not always be successful if audience members are visual or experiential learners. Even if audience members are good listeners, information overload or external or internal noise can be barriers to a speaker achieving his or her speech goals. Therefore, skillfully incorporating visual aids into a speech has many potential benefits:

• Helping your audience remember information because it is presented orally and visually
• Helping your audience understand information because it is made more digestible through diagrams, charts, and so on
• Helping your audience see something in action by demonstrating with an object, showing a video, and so on
• Engaging your audience by making your delivery more dynamic through demonstration, gesturing, and so on

There are several types of visual aids, and each has its strengths in terms of the type of information it lends itself to presenting. The types of visual aids we will discuss are objects; chalkboards, whiteboards, and flip charts; posters and handouts; pictures; diagrams; charts; graphs; videos; and presentation software. It’s important to remember that supporting materials presented on visual aids should be properly cited. We will discuss proper incorporation of supporting materials into a speech in Section 18.3 “Organizing”. While visual aids can help bring your supporting material to life, they can also add more opportunities for things to go wrong during your speech. Therefore we’ll discuss some tips for effective creation and delivery as we discuss the various types of visual aids.