<p>On the old SAT, I believe one condition for “flagging” a score was an increase of 350 points or more combined (out of 1600) from a previous official score. ETS probably does something similar for the new SAT (say, an increase of 200+ points in an individual section or an increase of 500+ points in the composite score might cause a student’s score to be flagged). Flagging, of course, does not always lead to the cancellation of a score for suspected cheating.</p>