ACT® · Reading — Integration of Knowledge and Ideas: Synthesis of Multiple Texts
Drawing Conclusions From Two Informational Texts
The hardest paired-passage question asks for a conclusion that only exists when you join a fact from one text to a claim in the other. Neither passage alone gets you there.
Each paired-passage set gives you two texts on a related subject, usually with some overlap and some disagreement. Most questions ask about one passage or compare the two directly. The hardest question type asks you to build a conclusion that is not written in either passage. You get there by chaining them: Passage A states a relationship, Passage B supplies a fact that fits into that relationship, and the conclusion only appears once both pieces are in place.
The chain usually runs through a shared variable. One passage says X causes Y. The other passage reports a specific case of X. Put the case into the relationship from the first passage and you get a Y that neither text ever states. A soil-science passage might link low organic carbon to dry fields in August; an agronomy passage might report that ploughed fields sit at a specific, lower carbon percentage than no-till fields next to them. Neither passage mentions drought risk on ploughed fields specifically. Joining them gives you that exact claim.
This sits next to the passage-comparison questions already in the unit, where you track where two texts agree or clash. The synthesis question is the extreme case of a disagreement edge: sometimes the second passage does not just add a fact, it supplies data that undercuts the first passage's reasoning entirely, including forecasts and predictions built on an assumed rate or trend. Reading both passages as one connected argument, rather than two separate scores to total up, is the skill the whole unit is building toward.
Key terms
- Synthesis question
- A paired-passage question whose correct answer requires combining information from both texts, not just one.
- Shared variable
- The quantity or category that appears in both passages and lets you link a claim in one to a fact in the other.
- Disagreement edge
- A point where the second passage's data undercuts or contradicts a claim or forecast made in the first passage.
- Chaining
- Building a new conclusion by feeding a specific fact from one passage into the general relationship stated in the other.
Watch it explained
- How it worksHow do you draw a conclusion that neither of two texts states on its own?
- How it worksHow does a fact in one text reinterpret a claim sitting in the other?
- Worked exampleShow me combining one text on soil carbon with one on tilling to reach a claim about yields.
- Common mistakeWhy isn't a conclusion drawn from only one of two paired texts ever the safer pick?
- Going furtherWhat happens when one text's data would falsify the other text's prediction?
Check yourself
End of topic.