^Boggles my mind that the WSJ article fails to mention the history of the SAT, the change in what it measures over the last two decades, the Redesigned SAT that debuted in 2016, and the fact that College Board now touts a study claiming 100+ pt increases due to practice on Khan.
They are relying on old research for an SAT that no longer exists. Naturally, the article is adapted from their new book $$