A speaker wants to argue that food insecurity is a serious problem in their city. They open with the statistic: '37% of households here experience food insecurity.' A critic says this feels abstract. What should the speaker add FIRST to make the case most persuasive?
AMore statistics to confirm the 37% figure with additional data sources
BA specific example — one family's story that gives the number a human face
CExpert testimony asserting that the statistic is accurate and well-documented
DAn analogy comparing food insecurity to other public health crises
The statistic establishes scope — that the problem is real and widespread — but statistics abstract away from experience and audiences often process them passively. Adding a specific example gives the pattern a face and emotional resonance, making the abstract concrete. This is the strategic combination: statistic establishes the pattern exists; example makes it emotionally real. Adding more statistics just compounds the abstraction, testimony only confirms the number, and analogy explains rather than humanizes.
Question 2 Multiple Choice
A speaker quotes: 'According to Dr. Sara Chen, this policy will create 50,000 jobs.' Which condition is MOST critical for this testimony to function as effective evidence?
AThe speaker has memorized the quote with word-for-word accuracy
BThe speaker explicitly establishes Dr. Chen's credentials so the audience recognizes her authority
CThe speaker cites a publication date to show the claim is recent
DThe 50,000-job figure can be independently verified with data
Testimony's persuasive force derives entirely from source credibility — and credibility only works if the audience recognizes it. A speaker cannot assume an audience knows who Dr. Chen is. If credentials are left unestablished, the quote functions as mere assertion. The other options are useful but secondary: accuracy, recency, and verifiability strengthen the argument, but if the audience doesn't know why Chen's opinion should be trusted, none of that matters.
Question 3 True / False
Statistics are the most persuasive form of evidence because they provide objective, quantifiable data that audiences cannot easily dismiss.
TTrue
FFalse
Answer: False
This is a common misconception. Research consistently shows that vivid examples often outperform data in changing attitudes, because human cognition is wired to engage with specific stories far more viscerally than with numbers. Statistics establish scope and significance, but they risk numbing the audience if not contextualized. A single compelling case study can move an audience more than a page of data — which is exactly why skilled speakers combine both types rather than relying on statistics alone.
Question 4 True / False
An analogy is a form of evidence that can do genuine explanatory work, not merely a decorative illustration.
TTrue
FFalse
Answer: True
Analogies are often underestimated as evidence, but a well-chosen analogy transfers existing understanding to an unfamiliar concept — allowing audiences to reason about new material using intuitions they already have. 'The immune system works like an army' lets audiences apply military intuitions to biology they otherwise lack. This is more than decoration; it is a distinct rhetorical function that statistics, examples, and testimony cannot replicate. The risk is that analogies break down somewhere, so speakers must know the comparison's limits.
Question 5 Short Answer
Why is it more persuasive to combine a statistic and a specific example than to use either one alone? What does each type of evidence do that the other cannot?
Think about your answer, then reveal below.
Model answer: The statistic establishes that a pattern is real and widespread — not an isolated incident. The example gives that pattern emotional resonance and human specificity. Used alone, statistics feel abstract and fail to engage audiences viscerally; examples alone risk being dismissed as anecdotes that don't generalize. Together, the statistic validates the example as representative of a real phenomenon, while the example concretizes what the statistic is actually measuring. Each compensates for the other's primary weakness.
This combination is the core strategic insight of evidence design. Neither type can do the other's job: a statistic cannot make an audience feel what it means, and a single example cannot prove something is widespread. The combination solves both problems simultaneously, which is why skilled speakers use it as their default structure when arguing that a problem is both real and serious.