Educerie · SAT · Reading and Writing
Information and Ideas · II.2 Command of evidence: textual
What you must be able to do
| You must be able to | What it looks like on the test |
|---|---|
| Read a claim precisely, including its qualifiers | …researchers concluded that the birds learn the song rather than inherit it |
| Judge whether a quotation proves that exact claim | Which quotation from the study most effectively illustrates the claim? |
| Reject quotations that are about the right topic | Three options will be on-topic and prove nothing |
| Handle the literature version | Which quotation best illustrates the narrator's ambivalence? |
1The idea in one paragraph
You are not looking for the quotation that mentions the subject; you are looking for the one that would convince someone who doubted the claim. The wrong options are always relevant — they name the same species, the same experiment, the same character — and they demonstrate something else, or nothing. Mentioning is not evidence. Demonstrating is.
Before reading the options, finish this sentence: "To prove this, I would need a quotation showing ______." Then go looking for exactly that.
2Take the claim apart first
A claim usually has two or three load-bearing parts, and the right quotation has to carry all of them.
Researchers concluded that the chicks learn the local dialect from adults rather than inheriting it.
The parts: learning, from adults, rather than inheritance. A quotation about chicks singing the local dialect proves nothing — inherited song would look identical. A quotation about chicks raised by adults of another dialect singing that dialect proves all three.
Most wrong answers fail exactly one part, which is why reading the claim carelessly is fatal here.
3The four families of wrong quotation
| Family | What it does |
|---|---|
| On topic, no proof | Mentions the subject, demonstrates nothing |
| Proves a neighbouring claim | Good evidence for something the question did not ask |
| Describes the method | Says how the study was done, not what it found |
| States the conclusion | Asserts the claim again instead of supporting it |
That last one is the subtle one. A quotation in which someone simply says the claim is true is not evidence for it; the test rewards the observation that would make a sceptic change their mind.
4The literature version
When the claim is about a character — the narrator is ambivalent about returning home — the right quotation shows the state rather than naming it. A line where the narrator says "I did not know whether I wanted to go back" is weaker than one where she fills a case, empties it again, and then sits beside it with the lid open.
Ask: does this line let me see it? Evidence in fiction is behaviour, detail, contradiction — not a summary sentence.
5Watch the qualifiers
Most, some, only, rarely, always, in some conditions. A claim about what happens in dry years is not supported by a quotation about an average year. A claim that a technique is the only method is not supported by a quotation showing it works.
Qualifiers are the cheapest way for the test to build three near-misses, and they are the first thing to check when two options both look right.
6When two options seem to work
Return to the claim and find the part they differ on. One of them will be about the right thing at the wrong time, the right thing for the wrong group, or the right thing without the comparison the claim requires. There is always a difference; it is in the claim, not in the quotations.
Where points are lost
- Matching on topic. All four options are on topic. That is the design.
- Reading the claim once. Break it into parts before you look down.
- Ignoring a qualifier — only, in dry years, among adults.
- Choosing a quotation that restates the conclusion instead of supporting it.
- Choosing the longest or most technical quotation. Neither correlates with proof.
- In literature, choosing the line that names the feeling rather than the one that shows it.
- Rushing. These are 90-second questions and they are worth the same as a 20-second grammar item — but they are also the ones you flag first when time is short.
Read it right
- Read the claim twice and split it into its parts.
- Say what a proving quotation would have to contain.
- Read each option and ask: does it show that, or merely mention it?
- Check every qualifier in the claim against your survivor.
- If two survive, find the part of the claim that separates them.
Try it
Q1. A researcher argues that the city's night markets survived the recession because their sellers shared stock with one another rather than competing.
Which quotation from the researcher's fieldnotes most effectively illustrates the claim?
A) "By 2011 the market had lost a third of its sellers, and the lanes at the eastern end stood empty." B) "When a seller ran short, another would hand over a crate and settle the price weeks later; nobody kept a ledger." C) "Sellers described the recession years as the hardest of their working lives." D) "The market has operated on the same site since the 1890s, through two wars and three currency collapses."
Q2. A literary critic claims that the narrator of The Quarry is more attached to the village she left than she is willing to admit.
Which quotation from the novel most effectively illustrates the claim?
A) "I had no reason to go back, and I told my sister so, twice, before she had finished asking." B) "The village was smaller than I remembered, and poorer, and the school had closed." C) "I did not miss it," she writes, "and I have never said otherwise." D) "In the new flat I hung the calendar on the wall facing the bed, the one with the photograph of the quarry road."
Q3. A team concludes that the beetle's resistance to the fungicide is inherited rather than acquired during the beetle's lifetime.
Which finding most effectively supports the conclusion?
A) Beetles collected from treated fields survived doses that killed beetles from untreated fields. B) Beetles bred in the laboratory from treated-field parents, and never themselves exposed, survived the same doses. C) Resistance in treated fields increased each year that the fungicide was applied. D) The fungicide was applied at the same concentration in every treated field.
In one breath
Every option is on topic; only one would change a sceptic's mind. Break the claim into its load-bearing parts, say what a proving quotation would have to contain, and then check each option against that — including the qualifiers, which are where three near-misses get built. In fiction the evidence is behaviour, not a line where the feeling is named, and a quotation that simply restates the conclusion is never the answer.
Answers
Q1. B. shows the sharing, and shows it as informal and uncosted Lending stock and settling later, with no ledger, is the cooperation the claim rests on. A documents the recession's damage, which is the background to the claim, not support for it. C is about hardship, which nobody disputes. D shows longevity across earlier crises — evidence for a neighbouring claim about resilience in general, not for this explanation of it.
Q2. D. the attachment is shown by an act she never comments on She hangs a photograph of the quarry road where she will see it from the bed, and says nothing about it — attachment demonstrated, admission withheld, which is exactly the claim. A and C are denials, and a denial is only evidence of attachment if something contradicts it; neither carries that contradiction. B is observation of change, not feeling.
Q3. B. never exposed, and still resistant — the only result that separates inherited from acquired A is consistent with either explanation: field beetles could have acquired resistance through exposure. C shows resistance spreading, which both hypotheses predict. D is about method consistency and proves nothing about the mechanism.
Educerie · written from the published College Board* Assessment Framework for the Digital SAT Suite *(Information and Ideas, skill/knowledge testing point "Command of Evidence — Textual"). All passages, options and explanations are original Educerie text. Last reviewed 12 September 2026.
Check your understanding
The main ideas of this note. Tick each one you could do now, in an exam, without looking back up. Anything you cannot tick yet is the part to read again.