How long do SAT / ACT / SAT Subject Test Scores last?

Question

I want to take my first SAT and a Subject Test in World History after this next school year (going to be a Sophomore 08'-09').

But I heard the scores remain valid for only a year.

This isn't so much about the SAT as I might only take that depending on my PSAT, but I want to take The World History Subject Test this year after I take AP World History.

So do the scores remain valid for only one year?

Answer 1

I am pretty sure that the score remains valid throughout your whole high school life.

Answer 2

SAT scroes don't expire; they are on your record for your whole high school career.

Answer 3

huh?