Function of an example

Overview

The function of an example is a critical reading comprehension skill tested extensively on the SAT Reading and Writing section. This concept requires students to understand why an author includes a specific example, illustration, or piece of evidence within a passage—not merely what the example says, but what rhetorical or argumentative purpose it serves. When the SAT asks about the function of an example, the question targets the student's ability to analyze text structure and recognize how authors build arguments, support claims, or clarify complex ideas through strategic use of concrete instances.

Mastering this topic is essential because function questions appear frequently across all passage types on the SAT, from literary narratives to scientific arguments. These questions test higher-order thinking skills beyond simple comprehension: students must step back from the content itself and evaluate the author's strategic choices. A student who can identify whether an example serves to illustrate a principle, challenge a prevailing theory, provide evidence for a claim, or introduce a counterargument demonstrates the analytical sophistication that distinguishes high scorers from average performers.

Understanding the function of examples connects directly to broader Reading and Writing (RW) skills including main idea identification, argument analysis, and rhetorical purpose. This topic serves as a bridge between literal comprehension and critical analysis, requiring students to recognize both what an author says and how the author constructs meaning through deliberate organizational choices. The ability to analyze examples functionally also supports success with other SAT question types, including purpose questions, structure questions, and inference questions.

Learning Objectives

• [ ] Identify key features of function of an example questions on the SAT
• [ ] Explain how function of an example appears on the SAT across different passage types
• [ ] Apply function of an example analysis to answer SAT-style questions accurately
• [ ] Distinguish between the content of an example and its rhetorical function within a passage
• [ ] Recognize common functional categories (illustration, evidence, counterexample, contrast, etc.)
• [ ] Evaluate answer choices by matching them to the specific role an example plays in the author's argument
• [ ] Connect examples to the claims or concepts they support within passage structure

Prerequisites

• Basic reading comprehension: Understanding literal meaning of passages is necessary before analyzing structural function
• Claim and evidence recognition: Students must distinguish between assertions and supporting details to identify what an example supports
• Paragraph structure awareness: Recognizing topic sentences and supporting details helps locate where examples function within arguments
• Vocabulary for rhetorical purpose: Familiarity with terms like "illustrate," "support," "challenge," and "demonstrate" aids in understanding answer choices

Why This Topic Matters

Understanding the function of an example represents a fundamental skill for academic reading across all disciplines. In college coursework, students constantly encounter texts where authors use examples strategically—scientific papers cite experimental results to support hypotheses, history texts use specific events to illustrate broader trends, and philosophical arguments employ thought experiments to clarify abstract concepts. The ability to recognize why an author includes particular examples enables deeper comprehension and critical evaluation of arguments.

On the SAT specifically, function of an example questions appear with high frequency, typically comprising 3-5 questions per test across the Reading and Writing section. These questions appear in both the Craft and Structure domain and the Information and Ideas domain, making them one of the most versatile question types students will encounter. The College Board consistently includes these questions because they assess skills directly relevant to college readiness: the ability to analyze how authors construct arguments and organize information.

Function questions commonly appear in several formats on the SAT. Students might encounter a question asking "Which choice best describes the function of the underlined sentence?" or "The author mentions [specific example] primarily to..." These questions appear across all passage types—literature, history/social studies, and science—though they're particularly common in argumentative passages where authors build cases through accumulated evidence. Science passages frequently test whether students understand that an example serves as experimental evidence, while humanities passages often ask students to recognize when examples illustrate theoretical concepts or provide historical context.

Core Concepts

Understanding Rhetorical Function

The function of an example refers to the specific role that an illustration, instance, or piece of evidence plays within an author's larger argument or explanation. While the content of an example tells us what it's about, the function tells us why the author included it. This distinction is crucial: two examples with completely different content might serve identical functions, while two similar examples might serve different purposes depending on their context within the passage.

Consider this distinction: if an author writes about how Marie Curie discovered radium, the content is biographical and scientific. However, the function might be to illustrate the challenges women faced in early 20th-century science, to provide evidence that persistence leads to breakthrough discoveries, or to introduce a counterexample to the claim that major scientific advances require large research teams. The same content serves different functions depending on what claim or concept the author is developing.

Common Functional Categories

Examples on the SAT typically serve one of several standard rhetorical functions. Understanding these categories helps students quickly identify the correct answer:

The Relationship Between Claims and Examples

Every example functions in relation to a claim, concept, or principle that the author is developing. To identify function accurately, students must first locate what the example is connected to. This requires reading both before and after the example to understand the broader context.

The typical structure follows this pattern:

1. Author introduces a claim, theory, or concept (often abstract)
2. Author provides an example (concrete instance)
3. Author may explain how the example relates to the claim

For instance: "Urban planning significantly impacts public health. [CLAIM] In Copenhagen, the city's investment in bicycle infrastructure has correlated with a 40% decrease in cardiovascular disease rates over two decades. [EXAMPLE] This demonstrates how transportation policy can directly influence population wellness. [EXPLANATION]"

Here, the Copenhagen example functions as evidence supporting the claim about urban planning's health impact. Students must recognize that the function isn't merely "to discuss Copenhagen" but specifically "to provide evidence that urban planning affects public health."

Content vs. Function: The Critical Distinction

The most important skill for mastering SAT function of an example questions is distinguishing between what an example is about (content) and what it does (function). Wrong answer choices on the SAT frequently describe the content accurately while misrepresenting the function.

Consider this passage excerpt: "Many assume that technological innovation always increases productivity. However, the introduction of email in the 1990s actually decreased workplace efficiency for several years, as employees spent increasing amounts of time managing messages rather than completing core tasks."

A question might ask: "The author mentions email primarily to..."

Content-focused wrong answer: "describe communication technology from the 1990s"

Function-focused correct answer: "challenge an assumption about technology's impact on productivity"

The example is indeed about 1990s communication technology (content), but it functions to provide a counterexample that challenges an assumption (function). Students must train themselves to ask "Why did the author include this?" rather than "What is this about?"

Context Clues for Determining Function

Several textual clues help students identify an example's function:

Positioning: Where the example appears matters. Examples at the beginning of a passage often introduce a problem or phenomenon that the passage will explore. Examples in the middle typically support or illustrate claims. Examples near the end might serve as culminating evidence or final illustrations.

Transition words: Authors signal function through transitional language. "For example" indicates illustration, "however" suggests contrast or counterexample, "similarly" indicates parallel support, and "consequently" shows cause-effect relationships.

Surrounding sentences: The sentences immediately before an example usually contain the claim or concept being supported. The sentences after often explain the connection explicitly, using phrases like "this shows," "this demonstrates," or "this illustrates."

Tone and emphasis: Authors use emphatic language when examples serve particularly important functions. Phrases like "most importantly," "crucially," or "the key evidence" signal that an example provides essential support.

Concept Relationships

The function of an example concept connects intimately with several other SAT Reading and Writing skills. Understanding these relationships helps students see how mastering this topic supports broader test performance.

Function of an example → Main Idea: Recognizing how examples support claims helps students identify the passage's main idea, since main ideas are typically the claims that multiple examples support. The relationship flows both ways: identifying the main idea helps determine what function examples serve in relation to it.

Function of an example → Text Structure: Understanding example function is essentially understanding one element of text structure—how authors organize supporting details around central claims. This connects to questions about overall passage organization and the relationship between paragraphs.

Function of an example → Purpose Questions: When the SAT asks about an author's purpose in writing a passage, the answer often relates to the cumulative function of the examples provided. An author whose examples consistently challenge assumptions has a different purpose than one whose examples consistently illustrate a theory.

Function of an example → Inference Questions: Determining function requires inference—students must infer the relationship between an example and surrounding claims even when not explicitly stated. This inferential skill transfers directly to other question types.

Claim Recognition → Function of an example → Evidence Evaluation: This progression represents the analytical sequence students must follow. First, identify claims; second, determine how examples function in relation to those claims; third, evaluate whether the examples effectively support the claims.

High-Yield Facts

⭐ Function questions ask WHY an author includes an example, not WHAT the example is about—the distinction between purpose and content is the most tested concept.

⭐ The claim or concept an example supports typically appears in the sentence immediately before or after the example—always read surrounding context.

⭐ Wrong answers often accurately describe the example's content while misrepresenting its function—this is the most common trap.

⭐ Transition words and phrases signal function: "for example" = illustration, "however" = counterexample, "similarly" = parallel support.

⭐ Examples can serve multiple functions simultaneously, but the correct answer identifies the PRIMARY or MAIN function in context.

• Function questions appear across all passage types: literature, history/social studies, and science passages.

• The correct answer must be supported by the specific context of the passage, not general knowledge about the topic.

• Examples that appear after phrases like "contrary to" or "despite" typically function as counterexamples or complications.

• When an author provides multiple examples in sequence, they typically serve the same function (accumulated evidence or multiple illustrations).

• Scientific passages often use examples to present experimental evidence, while humanities passages use examples to illustrate abstract concepts or provide historical context.

Common Misconceptions

Misconception: The function of an example is always to provide evidence for a claim.

Correction: While providing evidence is one common function, examples serve many purposes including illustration, counterexample, contrast, concession, and clarification. Students must evaluate the specific context to determine the actual function.

Misconception: If an answer choice accurately describes what the example is about, it must be correct.

Correction: Content accuracy doesn't equal functional accuracy. The SAT deliberately includes wrong answers that correctly describe the example's content but misidentify its rhetorical purpose. Always ask "Why did the author include this?" not just "What is this about?"

Misconception: The function is whatever the example literally does or describes.

Correction: Function refers to the rhetorical role in the author's argument, not the literal action described. If an example describes a scientist conducting an experiment, the function isn't "to describe an experiment" but rather "to provide evidence for a claim about scientific methodology."

Misconception: Longer examples always serve more important functions than shorter ones.

Correction: Length doesn't determine importance or function. A brief one-sentence example might provide crucial evidence, while a longer example might simply illustrate a point already well-established. Function depends on context and relationship to claims, not length.

Misconception: The first sentence of a paragraph always states what function the examples in that paragraph serve.

Correction: While topic sentences often introduce the claim that examples support, they don't explicitly state the function. Students must infer the relationship between the claim and the examples. Additionally, some paragraphs begin with examples before stating the claim they support.

Worked Examples

Example 1: Science Passage

Passage Excerpt:

"For decades, scientists believed that the human brain's structure remained relatively fixed after childhood. This view shaped educational policy and rehabilitation approaches, suggesting that early intervention was critical but later efforts would prove largely futile. Recent neuroimaging studies, however, have revealed significant plasticity even in adult brains. In one landmark study, researchers found that London taxi drivers, who must memorize the city's complex street network, showed measurable growth in the hippocampus—the brain region associated with spatial memory—compared to control subjects. This growth correlated directly with years of experience navigating the city."

Question: The author mentions the study of London taxi drivers primarily to:

A) Explain how taxi drivers develop superior navigation skills

B) Provide evidence that challenges the traditional view of brain development

C) Illustrate the function of the hippocampus in spatial memory

D) Describe the methodology of neuroimaging research

Analysis:

Step 1: Identify the claim or concept the example relates to.

The sentence before the example states: "Recent neuroimaging studies, however, have revealed significant plasticity even in adult brains." The word "however" signals that this challenges the earlier view that "the human brain's structure remained relatively fixed after childhood."

Step 2: Determine what the example does in relation to this claim.

The taxi driver study provides specific evidence of adult brain plasticity (hippocampal growth in adults learning complex navigation). It serves as concrete proof that contradicts the traditional fixed-brain view.

Step 3: Evaluate each answer choice.

• Choice A describes the content (taxi drivers and navigation) but not the function. The passage isn't primarily about how taxi drivers develop skills; it's about brain plasticity. This is a content trap.

• Choice B correctly identifies the function: the example provides evidence that challenges the traditional view. The study demonstrates adult brain plasticity, which contradicts the belief that brain structure is fixed after childhood.

• Choice C is partially true (the example does involve the hippocampus) but misidentifies the primary function. The passage isn't mainly explaining hippocampal function; it's using this example to prove brain plasticity.

• Choice D focuses on methodology rather than function. While the passage mentions neuroimaging, the primary purpose isn't to describe research methods but to present evidence for plasticity.

Correct Answer: B

Connection to Learning Objectives: This example demonstrates how to distinguish between content (taxi drivers, navigation, hippocampus) and function (providing evidence that challenges a view), and how to identify that the example serves as a counterexample to the traditional belief.

Example 2: Humanities Passage

Passage Excerpt:

"The concept of 'authenticity' in art has long been debated by philosophers and critics. Some argue that authentic art must emerge from genuine personal experience and emotional truth. Others contend that technical mastery and adherence to established forms constitute authenticity. The Japanese aesthetic principle of wabi-sabi, which finds beauty in imperfection and impermanence, offers a different perspective entirely. Rather than emphasizing either emotional sincerity or technical perfection, wabi-sabi locates authenticity in the acceptance of natural cycles and the marks of time—the patina on bronze, the asymmetry of a handmade bowl, the weathering of wood. This approach suggests that authenticity might be less about the artist's intention or skill and more about the object's relationship to natural processes."

Question: The author discusses wabi-sabi primarily to:

A) Demonstrate the superiority of Japanese aesthetics over Western art theory

B) Illustrate how different cultures define beauty in contrasting ways

C) Present an alternative conception of authenticity that differs from the two views mentioned earlier

D) Explain the importance of imperfection in Japanese art

Analysis:

Step 1: Identify the structure and claims.

The passage presents two competing views of authenticity (emotional truth vs. technical mastery), then introduces wabi-sabi with the phrase "offers a different perspective entirely." This signals that wabi-sabi functions as an alternative or third option.

Step 2: Determine the relationship.

The wabi-sabi example doesn't support either of the first two views; instead, it presents a completely different way of thinking about authenticity. The final sentence explicitly states this: "This approach suggests that authenticity might be less about the artist's intention or skill and more about the object's relationship to natural processes."

Step 3: Evaluate answer choices.

• Choice A introduces a value judgment (superiority) that the passage doesn't make. The author presents wabi-sabi as different, not better. This misrepresents the function.

• Choice B is too broad. While the example does involve cultural differences, the primary function isn't to illustrate cultural contrasts generally but specifically to present an alternative view of authenticity in the context of the debate introduced earlier.

• Choice C correctly identifies the function: wabi-sabi serves as an alternative conception that differs from both previous views. This matches the passage's structure and the signal phrase "offers a different perspective entirely."

• Choice D describes the content (imperfection in Japanese art) but not the function within this passage's argument about authenticity. The passage uses wabi-sabi to make a point about authenticity, not primarily to explain Japanese art.

Correct Answer: C

Connection to Learning Objectives: This example shows how to recognize that an example can function to present an alternative view rather than support one of the existing positions, and demonstrates how signal phrases like "offers a different perspective" indicate function.

Exam Strategy

Approaching Function Questions Systematically

When encountering a function of an example question on the SAT, follow this strategic process:

1. Identify the example clearly: Determine exactly which portion of text the question asks about. Underline or mentally note the boundaries of the example.

1. Read before and after: Always read at least one sentence before and one sentence after the example. The claim or concept the example relates to typically appears in this context.

1. Ask "Why?" not "What?": Train yourself to ask "Why did the author include this?" rather than "What is this about?" This mental shift prevents content-focused errors.

1. Locate the claim: Find the assertion, theory, or concept that the example connects to. This is usually an abstract statement that the example makes concrete.

1. Identify the relationship: Determine whether the example supports, challenges, illustrates, contrasts with, or extends the claim.

1. Predict before looking at choices: Formulate your own answer about the function before reading the options. This prevents answer choices from misleading you.

1. Eliminate content-focused answers: Cross out any choice that accurately describes what the example is about but doesn't explain why the author included it.

Trigger Words and Phrases

Certain words and phrases in questions signal that you're dealing with a function question:

• "The author mentions X primarily to..."
• "Which choice best describes the function of..."
• "The author includes X in order to..."
• "X serves mainly to..."
• "The purpose of the reference to X is to..."

In the passage itself, these transition words signal different functions:

Illustration/Support: "for example," "for instance," "to illustrate," "such as," "including"

Counterexample: "however," "yet," "nevertheless," "contrary to," "despite"

Contrast: "unlike," "whereas," "in contrast," "on the other hand"

Extension: "furthermore," "moreover," "additionally," "similarly"

Concession: "although," "while," "admittedly," "granted"

Process of Elimination Tips

Eliminate answers that:

• Describe the content accurately but ignore the rhetorical purpose
• Use extreme language ("prove," "definitively show") when the example provides limited support
• Mention topics discussed in the example but not related to the main claim
• Focus on minor details rather than the primary function
• Introduce concepts not present in the passage context

Keep answers that:

• Connect the example to a claim or concept stated in surrounding sentences
• Use appropriate hedging language ("suggest," "support," "illustrate")
• Match the relationship signaled by transition words
• Identify the primary purpose even if the example serves multiple functions

Time Allocation

Function questions typically require 45-60 seconds to answer accurately. Allocate time as follows:

• 15 seconds: Read the question and identify the example
• 15 seconds: Read surrounding context and identify the claim
• 10 seconds: Determine the relationship/function
• 15 seconds: Evaluate answer choices and eliminate wrong answers
• 5 seconds: Confirm your choice

Don't rush these questions. The time invested in reading context carefully prevents errors and actually saves time by making the correct answer obvious.

Memory Techniques

The WIFE Acronym

Remember the four most common functions with WIFE:

• What it proves (Evidence)
• Illustration of a concept
• Foils or challenges a view (Counterexample)
• Extension or development of a point

When you encounter an example, quickly categorize it using WIFE to narrow down the function.

The "Why Did You Tell Me That?" Technique

Imagine the author is speaking directly to you. After reading an example, mentally ask: "Why did you tell me that?" This simple question shifts your thinking from content to function. Your answer should connect the example to a larger point: "You told me that to prove..." or "You told me that to show a different perspective on..."

The Claim-Example-Connection Visualization

Visualize the passage structure as a chain:

CLAIM (abstract) → EXAMPLE (concrete) → CONNECTION (explanation)

When you identify an example, look backward for the claim and forward for the connection. This mental model helps you see the example's function as the bridge between abstract assertion and explicit explanation.

The Function Categories Table

Memorize this simplified version of the function categories:

The Content vs. Function Mantra

Before selecting an answer, repeat: "Content is WHAT, function is WHY." This simple reminder prevents the most common error on these questions.

Summary

The function of an example represents a crucial analytical skill for SAT Reading and Writing success. This concept requires students to move beyond literal comprehension and evaluate why authors include specific examples within their arguments. The fundamental distinction students must master is between content (what an example is about) and function (why the author included it). Examples typically serve one of several standard functions: illustration, evidence, counterexample, contrast, concession, or extension. To identify function accurately, students must read surrounding context to locate the claim or concept the example relates to, recognize signal words that indicate relationships, and resist answer choices that accurately describe content while misrepresenting function. The most effective approach involves asking "Why did the author include this?" rather than "What is this about?" Success on function questions requires understanding that examples exist in service of larger arguments—they're strategic choices authors make to support, challenge, clarify, or develop their ideas. Mastering this topic not only improves performance on direct function questions but also enhances overall reading comprehension by training students to recognize how texts are constructed and how meaning emerges from the relationship between claims and supporting details.

Key Takeaways

• Function questions ask WHY an author includes an example, not WHAT the example discusses—this distinction is critical for avoiding content-focused wrong answers
• Always read at least one sentence before and after an example to identify the claim or concept it relates to
• The most common functions are illustration, evidence, counterexample, contrast, and extension—recognizing these categories speeds up analysis
• Transition words signal function: "for example" indicates illustration, "however" suggests counterexample, "similarly" shows parallel support
• Wrong answers frequently describe the example's content accurately while misidentifying its rhetorical purpose—eliminate these systematically
• The correct answer must be supported by the specific passage context, not general knowledge about the topic
• Examples serve their function in relation to claims, so identifying the claim is the essential first step in determining function

Related Topics

Text Structure and Organization: Understanding how examples function is part of the broader skill of analyzing how authors organize information. Mastering example function prepares students for questions about overall passage structure and paragraph relationships.

Purpose and Point of View: The cumulative function of examples often reveals an author's overall purpose. Students who can identify individual example functions can more easily determine why an author wrote the entire passage.

Argument Analysis: In passages that make arguments, examples typically serve as evidence. Understanding example function is essential for evaluating argument strength and recognizing how authors support claims.

Inference Questions: Determining function requires inferential thinking—students must infer relationships not always explicitly stated. The analytical skills developed through function questions transfer directly to inference questions.

Rhetorical Synthesis: Advanced students can study how authors combine multiple examples serving different functions to build complex arguments, preparing for college-level analytical writing.

Practice CTA

Now that you've mastered the core concepts of function of an example, it's time to apply this knowledge! Work through the practice questions to test your ability to distinguish content from function, identify claims that examples support, and recognize the various rhetorical purposes examples serve. Use the flashcards to reinforce the key categories and signal words that indicate function. Remember: every practice question you complete strengthens your pattern recognition and speeds up your analysis on test day. The difference between a good score and a great score often comes down to mastering exactly this type of analytical skill. You've built the foundation—now practice applying it until identifying function becomes automatic!