5.1 Identifying Claims, Evidence & Assumptions

Reading Like an Argument Analyst

Every persuasive passage on the GED Reasoning Through Language Arts (RLA) test is built from three parts: a claim, the evidence offered to support it, and the assumptions that quietly connect the two. The official Reading assessment targets — the "R.8" argument standards — reward test-takers who can name these parts precisely, and the 45-minute Extended Response essay is nearly impossible to score well on without them. Learning to separate the pieces turns a dense passage into a map you can read at a glance.

The Claim, or Thesis

A claim is the author's main position on a debatable issue — the single sentence the rest of the passage tries to prove. A real claim is arguable: reasonable people could disagree with it. "The federal minimum wage was set at $7.25 in 2009" is a fact, not a claim, because it is simply true and checkable. "The federal minimum wage should rise to match inflation" is a claim, because it takes a side.

To locate the claim, ask yourself, What is this author trying to convince me of? It usually sits in the thesis — the first or last paragraph — but in news-style or narrative passages the claim may be implied, so you assemble it from the reasons given. Keep the overall claim separate from smaller sub-claims: supporting reasons that each need their own evidence. A passage on renewable energy might make the main claim "cities should expand solar power" and support it with the sub-claims "solar costs have fallen" and "rooftop panels create local jobs." Confusing a sub-claim for the thesis is a common GED error.

Five Types of Evidence

Evidence is the factual material an author supplies to back a claim. The GED expects you to recognize the common types and judge how convincing each one is.

Facts and well-sourced statistics are the strongest support because a reader can verify them. Expert testimony persuades only when the expert's field matches the topic — a cardiologist's opinion on tax policy carries little weight. Examples help when they are typical rather than cherry-picked, while a lone anecdote is the weakest evidence, because a single vivid case rarely proves a general rule. Many GED items — for instance, "Which statement, if true, would most strengthen the argument?" — are really testing whether you can pick the most relevant and sufficient evidence from four choices.

Stated vs. Unstated Assumptions

An assumption is an unstated belief an argument needs in order to hold together. If the assumption is false, the argument collapses even when every stated fact is true. Consider: "We should build a new highway because downtown traffic is terrible." The stated claim (build the highway) rests on an unstated assumption — that a new highway will actually reduce downtown traffic rather than attract more cars. A skilled reader surfaces that hidden link and tests it.

To find an assumption, ask, What must be true for this reasoning to make sense? GED argument items frequently hinge on exactly this: the correct answer names the belief the author never wrote down but clearly relied on. Stated assumptions (sometimes called premises) are written out; unstated assumptions are the trickier target and the ones the exam prizes.

Fact vs. Opinion

Separating fact from opinion is one of the most tested reading skills. A fact can be verified against evidence ("One in three U.S. adults sleeps fewer than seven hours, per the CDC"). An opinion is a judgment, belief, or value statement ("Americans do not take rest seriously enough"). Watch for opinion signal words:

• should, ought to, must (recommendations)
• best, worst, greatest, paramount (value judgments)
• beautiful, unfair, dangerous, wonderful (subjective descriptions)

A statement attributed to a group — "critics contend...," "supporters believe..." — is being framed as an opinion even when it sounds authoritative. On a GED "which statement is an opinion" item, ignore how confident it sounds and ask only: Could this be proven true or false with evidence? If not, it is opinion.

Relevant vs. Irrelevant Evidence

Even true evidence is worthless if it does not connect to the claim. Relevant evidence directly supports or weakens the specific point at issue; irrelevant evidence is true but off-topic. Suppose a writer argues that a city should limit almond farming to protect its water supply. The statement "almonds are highly nutritious" is irrelevant — nutrition says nothing about water use — while "almond orchards draw billions of gallons from a drought-stressed region" is relevant and strengthens the claim.

Common trap: On the GED, the most emotionally appealing answer choice is often the irrelevant one. Always ask, Does this fact actually bear on the exact claim being made? Then discard any choice that is true but quietly changes the subject. Mastering this three-part frame — claim, evidence, assumption — is the foundation for everything in Section 5.2, where you move from finding an argument to judging whether it holds up.