<p>I agree that superscoring often significantly raises SAT I scores. I took the test twice; my superscored score is 70 points higher than my best single-sitting score.</p>
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Correlation doesn’t imply causation. Those students who got 800s might have consistently retaken the SAT I to have done so, and are hence perfectionists who would otherwise be more likely to be admitted.</p>
<p>Correlation does not preclude causation, but these data do not by themselves constitute evidence of 800s being well received.</p>