GRE Reading Comprehension: Main Idea vs. Detail Questions

GRE Reading Comprehension questions fall into broad and narrow types. Main idea questions ask what the passage is mostly about or what the author primarily intends. Detail questions ask what the passage says about one specific point.

These require different reading. For main idea you need the forest; for detail you need a specific tree. Knowing which you are answering keeps you from picking an answer at the wrong altitude.

On your first read, do not memorize facts. Map the structure: what is the author's purpose, where does the main claim appear, and how does each paragraph function. Is a paragraph giving evidence, raising an objection, or qualifying a claim.

A short structural summary in your head, such as the author describes a theory then explains its limits, answers most main idea questions before you even reach the choices.

The correct main idea answer must cover the entire passage, not just one paragraph. A frequent trap is an answer that is true but too narrow, capturing a supporting point rather than the central one.

Equally avoid answers that are too broad or that introduce ideas the passage never develops. The right answer matches the passage's actual scope, including its tone and purpose.

For detail questions, go back and find the relevant lines. Do not answer from memory, because the choices are written to sound familiar while distorting what the passage said.

The correct answer is often a paraphrase of a specific sentence. Beware answers that overstate with words like always or never when the passage was more measured, and answers that mention real terms from the passage but recombine them into a claim the author never made.

Read for structure and purpose, not trivia. Identify whether each question is main idea or detail. For main idea, choose the answer that fits the whole passage at the right scope. For detail, return to the text and pick the faithful paraphrase, rejecting out-of-scope and overstated choices.