Standard deviation of total SAT scores: not simply the sum of the standard deviations of subtests
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Someone on Reddit for SlateStarCodex: AFAIK, SATs are normed to mean of 500 per section and standard deviation of 100. Assuming that math and verbal are highly correlated, that approximates to 1000 mean and 200 standard deviation for the SAT 1600 scale.
Standard deviation of total SAT scores: not simply the sum of the standard deviations of subtests
Standard deviation of total SAT scores: not…
Standard deviation of total SAT scores: not simply the sum of the standard deviations of subtests
Someone on Reddit for SlateStarCodex: AFAIK, SATs are normed to mean of 500 per section and standard deviation of 100. Assuming that math and verbal are highly correlated, that approximates to 1000 mean and 200 standard deviation for the SAT 1600 scale.