LSAT Main Point and Primary Purpose

What It Tests

Main Point and Primary Purpose questions ask you to identify the central argument or controlling idea of the entire passage. They test whether you read the passage as a unified whole rather than a collection of isolated details.

How to Identify the Question Type

• Which of the following most accurately expresses the main point of the passage?
• The primary purpose of the passage is to...
• Which of the following best describes the overall argument?

Attack Strategy

• Step 1: As you read, track the author's argument -- what is the author ultimately trying to argue or convey?
• Step 2: Pay special attention to the first and last paragraphs -- main points often appear there
• Step 3: Watch for thesis signals: therefore, thus, in conclusion, ultimately, the key point is
• Step 4: The correct answer must cover the ENTIRE passage, not just one section

The Scope Test

Ask of each answer: does the passage spend most of its time arguing for this? If yes, it is a candidate. If the passage only briefly mentions the topic, eliminate it. The correct answer is neither too broad (vague) nor too narrow (a detail).

Example Problem

Passage: Four paragraphs arguing that urban green spaces reduce crime, with evidence from multiple cities, a discussion of the psychological mechanisms, and a policy recommendation. Main Point: Urban green spaces reduce crime and cities should invest in them. Wrong answers: 'Crime has many causes' (too broad) or 'Chicago's parks reduced crime' (too narrow).

Common Wrong Answer Traps

• Too narrow: describes only one paragraph's content
• Too broad: makes a claim bigger than anything the passage argues
• Opposite: reverses the author's actual position
• Distorted: accurately describes a detail but misrepresents its role in the whole

Top Tips

• The main point is usually something the author argues FOR, not just describes
• If an answer would require only one paragraph to support it, it is probably too narrow
• Correct answers often include the author's evaluative stance, not just the topic