SAT Inferences Questions
What follows from the text without being stated in it. The right answer is the one the passage forces you into, even when a more reasonable-sounding option is sitting next to it.
In short
- Inferences is part of Information and Ideas, about 26% of the scored Reading and Writing questions: 12 to 14 on every test.
- Information and Ideas questions come second in every Reading and Writing module, after Craft and Structure, grouped by topic from easiest to hardest.
- Reversed argument is the trap Rivie's practice tests set most often in Inferences questions.
Common traps
Most common first, from Rivie's ten practice tests.
Reversed argument
The wrong choice flips the passage's claim, saying the author argues X when in fact the author argues against X (or describes X as someone else's view).
The usual mistake: You map a noun like 'capitalism' to your answer without tracking who's making the claim and what the author's stance actually is.
Extreme words
The wrong choice uses absolutes (always, never, all, none, completely) when the passage hedges with qualifiers (often, may, some, suggest).
The usual mistake: You match the topic and miss the qualifier, picking a strong-sounding answer over the choice that mirrors the passage's tentative tone.
Over/under claim
The wrong choice either overstates the passage's conclusion (going further than the evidence) or understates it (saying less than the passage actually argues).
The usual mistake: You go for the boldest-sounding choice when the passage is cautious, or the safest choice when the passage is making a strong claim.
Rival explanation
The wrong choice offers a plausible alternative explanation for the same finding the passage describes, but it's not the explanation the author advances.
The usual mistake: You see a wrong-but-reasonable cause and accept it because it sounds scientific, instead of checking whether the passage actually argues for it.
Correlational substitute
The wrong choice swaps the causal claim the passage makes for a milder correlational one (or vice versa), preserving the topic but shifting the strength.
The usual mistake: You see two things linked in the passage and accept any choice that links them, missing whether the link is 'causes' versus 'is associated with'.
False causation
The wrong choice asserts cause where the passage only describes co-occurrence, adding 'because' or 'leads to' to a relationship that's only correlational.
The usual mistake: Your brain bridges the gap between two events and reads cause into them. SAT R&W treats every causal claim as something the passage must explicitly support.
Reversed inference
The wrong choice is the inverse of a valid inference: if the passage says 'A predicts B', the trap says 'B predicts A', or worse, 'not-A predicts not-B'.
The usual mistake: You spot the right concepts in the answer and don't double-check the direction of the implication. The trap rewards reading inferences as commutative.
Missed assumption
Inference question where the right answer requires identifying an unstated assumption that bridges two claims, and the wrong choice ignores that bridge.
The usual mistake: You only consider what the passage explicitly says and rule out the assumption-bearing answer because 'it's not in the passage'. Inferences ARE assumptions.
Ignores self-implication
The wrong choice misses what the text implicitly says about its own author or stance, taking a self-aware sentence at literal face value.
The usual mistake: You read the sentence as straightforward fact, missing that the author is signaling their own uncertainty, irony, or limitation about what they just said.
Try a question
From Rivie's practice tests. Pick an answer to see why it is right or wrong.
In 1967, the Cambridge graduate student Jocelyn Bell noticed on a chart recorder a train of radio pulses arriving every 1.3 seconds from a fixed point in the sky. Her supervisor at first suggested the signal must be terrestrial interference, but Bell, after examining the chart by eye and tracing the source across the sky, insisted the pulses came from a stellar object. Within months, three more pulsing sources had been found, and the class now called 'pulsars' had been added to the catalog of cosmic objects. ____
Which choice most logically completes the text?
Video lessons
Free on YouTube, picked for this topic.