LSAT percentiles and score bands: what the other two numbers mean

People quote the 120-to-180 number and ignore the other two, which is a shame, because the other two are the ones that tell you what the first one is worth and how much to trust it.

The percentile rank

Two details in that sentence do real work. First, it is measured against people who took the LSAT — not against everyone, and not against everyone applying to law school. That population is already self-selected toward people who read for a living, which is why a percentile that sounds modest is not.

Second, it is a three-year rolling window, not the people who sat your particular administration. So your percentile is not a verdict on how you did against the room; it is your position against everyone who has taken the test recently. It also means the same scaled score can be worth a slightly different percentile from one year to the next, as the window rolls.

The score band

This is LSAC saying, in its own publication, that your score is an estimate with error in it. Sit with that for a second, because it reframes a lot of anxiety. The difference between two scores a point or two apart is inside the noise. Two people whose bands overlap heavily are, as far as the test can tell, the same.

It cuts the other way too. It is why a single practice test is weak evidence about yourself, and why a run of them is much stronger. One result is a sample from your band; the run is the band.

What is on the report

The schools you apply to see the report, not just the headline number. What they do with a history of several attempts is their own policy, and worth reading on their admissions page rather than guessing at.