Which of the following enhances credibility in a speech?

• A. Using emotional appeals only
• B. Excluding data and evidence
• C. Including well-researched statistics
• D. Focusing solely on personal anecdotes

Answer: (C)

Including well-researched statistics enhances credibility in a speech because it provides objective evidence to support the speaker's claims. When a speaker incorporates accurate data and statistics, it demonstrates that they have conducted thorough research and have a solid understanding of the topic. This not only reinforces the speaker’s arguments but also builds trust with the audience, as they can see that the speaker is informed and relies on factual information rather than just personal opinions or emotions.

In contrast, relying solely on emotional appeals, excluding data, or focusing only on personal anecdotes can weaken a speaker's credibility. Emotional appeals may resonate with the audience but lack the substantiated backing that statistics provide. Excluding data and evidence undermines the argument by making it seem unfounded or biased. Similarly, while personal anecdotes can be powerful in connecting with an audience, they are often subjective and don’t offer the broad applicability or reliability that well-researched statistics do.