Glossary

inference

An inference is a conclusion the passage supports without stating it — usually one or more things the passage says that must be true for the answer to hold.

Also written: infer, inferences

An inference is a conclusion the passage supports but never states. The test for one is mechanical: find the sentence or sentences that must be true for the answer to hold — usually two, sometimes one — and check that the passage actually gives them. If the answer needs a fact from outside the passage, it is not an inference — it is a guess. Questions ask for one in several ways: what does the passage imply, what does it suggest, what would most likely happen, what can be concluded. All of them are answered from the passage alone, which is why the word most likely appears: an inference is the reading the text points at, not the only thing that could ever happen. The trap is a claim that is sensible and unsupported — a reason, an intention or a comparison the passage never makes. Ask which sentence would have to be there; if none would, the option is out.

Source: The reading skills ATI names in its own Content Outline (R.1.1-R.1.6, under the Key ideas and details sub-content area); each definition below is written for the Key Ideas and Details guide in this exam, in our own words, and explains the skill the way the guide teaches it. (ATI Content Outline read 2026-10-08; definitions written 2026-10-09)

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