Searching for the SAT question about elected officials? There are two, and this page answers both. If your question starts “One challenge when researching whether holding elected office…”, the answer is D. If it starts “While no one doubts that politicians are influenced…”, the answer is A.
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Question banks: October 2026 English question bank
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Each question below shows the full passage, the four choices, and the answer right under the choices. Then a tutor explains why the right answer works and why each wrong choice is a trap.
| Question starts with | Question type | Answer |
|---|---|---|
| One challenge when researching whether holding elected office… | Complete the text (inference) | D |
| While no one doubts that politicians are influenced… | Main idea | A |
One challenge when researching whether holding elected office changes a person’s behavior… (Answer: D)
One challenge when researching whether holding elected office changes a person’s behavior is the problem of ensuring that the experiment has an appropriate control group. To reveal the effect of holding office, researchers must compare people who hold elected office with people who do not hold office but who are otherwise similar to the office-holders. Since researchers are unable to control which politicians win elections, they therefore ______
Which choice most logically completes the text?
- struggle to find valid data about the behavior of politicians who do not currently hold office.
- can only conduct valid studies with people who have previously held office rather than people who presently hold office.
- should select a control group of people who differ from office-holders in several significant ways.
- will find it difficult to identify a group of people who can function as an appropriate control group for their studies.
Answer: D) will find it difficult to identify a group of people who can function as an appropriate control group for their studies.
This is an official College Board question. It is question 18 in Reading and Writing Module 2 of College Board’s printable SAT Practice Test 4, and D is the answer in College Board’s Practice Test 4 answer explanations. It is also in College Board’s SAT Suite Question Bank, rated Hard.
Why D is right
Follow the passage one step at a time:
- The goal. Researchers want to know if holding office changes how a person acts.
- What they need. A control group: people who are like the office-holders in every way except one. They do not hold office.
- The problem. Researchers cannot pick who wins an election. Voters do.
So what follows? If researchers cannot decide who gets into office, they cannot build two matching groups on purpose. That makes a good control group hard to find. Choice D says exactly that.
A tip for “most logically completes the text” questions: before you look at the choices, finish the sentence in your own words. Here, a good guess is “so they will have trouble finding a fair comparison group.” Then pick the choice that matches your guess.
Why the other choices are wrong
- A) struggle to find valid data about politicians who do not hold office. The passage never says that data is hard to find. The problem is building a matching group, not collecting facts.
- B) can only study people who held office in the past. The passage never compares past and present office-holders. And studying people who already left office would not show how office changes someone.
- C) should pick a control group that is very different. This is the opposite of the passage. The control group must be “otherwise similar to the office-holders,” not different from them.
While no one doubts that politicians are influenced by a variety of incentives… (Answer: A)
While no one doubts that politicians are influenced by a variety of incentives, it is generally agreed that they seek to support policies their constituents favor—after all, they risk losing office if they do not. Direct contact with constituents via such means as public events and emails from voters is a major source of politicians’ beliefs about their constituents’ views, but it is susceptible to a selection effect. There is little reason to presume that individuals with the time, resources, and strength of feeling to directly engage with their representatives are themselves broadly representative.
Which choice best states the main idea of the text?
- Although politicians have an incentive to act in accordance with their constituents’ views, politicians’ understanding of those preferences may be skewed.
- People who are likely to contact their elected representatives do not tend to be representative of politicians’ constituents generally.
- Direct contact with constituents shapes politicians’ beliefs about policies their constituents favor, and they try to act in accordance with those beliefs.
- Although politicians have an incentive to act in accordance with their constituents’ views, that is not the only incentive they have.
Answer: A) Although politicians have an incentive to act in accordance with their constituents’ views, politicians’ understanding of those preferences may be skewed.
This question comes from The Test Advantage’s March 2026 International Reading and Writing Question Bank. A tutor re-solved it for this page and got A, the same answer as the bank. We do not claim College Board wrote it or that it appeared on a specific SAT date.
Why A is right
The passage makes two moves:
- Politicians want to do what voters want. If they ignore voters, they can lose the next election.
- But their picture of what voters want can be off. They learn a lot from people who show up at events or send emails. Those people have more time, money, or strong feelings than most voters. So they may not speak for everyone.
That second point is called a selection effect: the people who choose to speak up are not a fair sample of the whole group. A main idea answer has to keep both moves. Choice A does: politicians want to follow voters (move 1), but their understanding may be skewed (move 2).
Why the other choices are wrong
- B) People who contact representatives are not typical. True, but it is only the reason for move 2. It leaves out move 1, the politicians’ reason to listen. A true detail is not the main idea.
- C) Direct contact shapes politicians’ beliefs, and they act on them. This skips the warning. The whole point is that direct contact can mislead.
- D) Following voters is not the only incentive. The first line mentions other incentives, but the passage never talks about them again. It is an aside, not the main point.
The move: before you read the choices, sum up the passage in one sentence that keeps its “but.” Here: “Politicians want to follow voters, but the voters they hear from may not represent everyone.” Then pick the choice that says the same thing.
How these two question types differ
| Complete the text (inference) | Main idea | |
|---|---|---|
| What it asks | What logically comes next | What the whole passage says |
| Where the answer comes from | The steps of the argument, followed to their end | Every major point, kept together |
| Common trap | A choice that says the opposite of a key detail (C in the first question) | A true detail that covers only part of the passage (B in the second question) |
| Best first move | Finish the sentence in your own words | Sum up the passage in one sentence |
College Board puts both question types in the Information and Ideas part of the Reading and Writing section. Main idea questions are a different skill from main purpose questions, which ask what the author is doing. If you mix those up, read our main purpose question walkthrough.
Practice the same skills
- Our main idea strategy guide covers more passage types.
- The free Main Idea lesson notes cover this skill (a free account is needed to open them).
- The free Support the Claim lesson notes cover the same evidence thinking.
- More worked Information and Ideas questions: Information and Ideas questions with answers.
- Ready for a timed run? Create a free account and take one full-length adaptive SAT section free, with a real Module 1 to Module 2 route and a scaled score.
How we built this page: the first question and its answer come from College Board’s printable SAT Practice Test 4 and its answer explanations (fetched September 29, 2026) and match College Board’s SAT Suite Question Bank. The second question comes from The Test Advantage’s own question bank; a tutor re-solved it and confirmed the answer. The explanations are The Test Advantage’s own work.
Frequently Asked Questions
What is the answer to "One challenge when researching whether holding elected office changes a person's behavior"?
D: they will find it difficult to identify a group of people who can function as an appropriate control group for their studies. Researchers cannot control who wins elections, so they cannot build a matching comparison group. College Board's official answer is D.
Which SAT practice test has the elected office question?
It is question 18 in Reading and Writing Module 2 of College Board's printable SAT Practice Test 4. It is also in College Board's SAT Suite Question Bank, rated Hard.
Why is "should select a control group of people who differ from office-holders" wrong?
The passage says the control group must be otherwise similar to the office-holders. Picking people who differ is the opposite of what a control group needs.
What is the main idea of the passage that begins "While no one doubts that politicians are influenced by a variety of incentives"?
A: politicians have an incentive to act on their constituents' views, but their understanding of those views may be skewed, because the people who contact them may not represent everyone.
Why is the selection-effect choice not the main idea?
It is true, but it only explains why politicians' view may be skewed. It leaves out the first half of the passage: politicians' reason to follow voters. A main idea answer must cover both.