The LSAT Experimental Section Explained: What It Is, Why It Exists, and How to Handle It

The LSAT contains one section that does not count toward your score. LSAC calls it the variable or experimental section. It is used to pilot new questions — LSAC needs to know how real test-takers respond to a question before including it in the scored pool.

On the scored LSAT, you receive two Logical Reasoning sections and one Reading Comprehension section — three scored sections total. The experimental section is an additional, unscored section that resembles one of these two types. It will look and feel exactly like a real section. There is no asterisk, no note, no flag.

The LSAT Writing section is separate and happens at a different time; it is not the experimental section.

Before a question enters the scored LSAT, LSAC needs psychometric data on it: how difficult is it, how does it differentiate strong from weak test-takers, do any answer choices have ambiguous wording? The only reliable way to get that data is to administer the question to real test-takers under real test conditions.

The experimental section is that vehicle. LSAC distributes different experimental sections across different test administrations so data can be collected across a large sample.

This is standard practice in large-scale standardized testing. The GRE has an experimental section. The MCAT has similar pilots embedded in its sections. For the LSAT, the section is discrete and whole rather than individual embedded items.

On the digital LSAT, the answer is effectively no. The sections are not labeled. The experimental section uses real-seeming questions of realistic difficulty — LSAC specifically designs it not to be distinguishable.

On older paper LSATs, some test-takers attempted to identify the experimental section by noticing when two sections of the same type appeared in a single test administration (e.g., two Logical Reasoning sections when the scored test typically has one or two). But even that heuristic is unreliable: the scored LSAT includes up to two Logical Reasoning sections, so seeing two doesn't tell you which is experimental.

The attempt to identify the experimental section mid-test is a trap. It diverts mental energy from actual performance, and if you guess wrong, you may sandbag a scored section.

Treat every section as if it is scored. This is not just test-prep advice — it is the mathematically correct approach.

You have a 1-in-4 chance of being on the experimental section at any given moment (roughly), and you do not know when. If you half-effort a section hoping it's experimental, and it is not, you just damaged your score.

The expected value of treating every section seriously is strictly better than trying to coast on the one you guess is experimental. Elite test-takers do not change effort levels between sections.

Additionally: questions you find on the experimental section appear on future scored LSATs. If you genuinely engage with those questions, you may encounter similar items later — as scored items — with a head start.

Because the experimental section is invisible, you cannot plan around it. Build your pacing strategy for the scored sections only — you know how long each scored section type takes — and treat the experimental section as additional practice under real conditions.

If you finish the test feeling like one section went unusually poorly, it may have been the experimental section. But you do not know. So treat post-test feelings about individual sections with skepticism until your score is released.

LSAT Writing is completed separately, before or after the test, via LSAC's LawHub platform. It is not scored but is sent to law schools along with your score. It is not the experimental section and does not affect your 120–180 score. Think of it as a brief written exercise law schools use as additional context.