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...that the College Board sponsored it. The College Board is, of course, also the sponsor of the SAT. The study's positive results are likely to be welcomed by the Board, which added a writing section to the SAT in 2005, extending the test from its previous three-hour length to three hours and 45 minutes. The move elicited criticism from educators and parents, who said the test had gotten too long to be a fair assessment of an exhaustible student's true abilities...
When the researchers scored the results, it came as no surprise that volunteers' fatigue and stress rose steadily as the test got longer. What was unexpected was their corresponding performance: as the length of the test increased, so did the students' scores. The average score on the three-and-a-half hour test was 1,209 out of 1,600. On the four-and-a-half-hour version it was 1,222; on the five-and-a-half-hour test it was 1,237. Virtually all of the students followed that pattern...
...original version of this article misstated that study participants took one of three different versions of the SAT reasoning exam; each student took all three versions. The article also stated that students took the tests in ascending order of length, but in fact the tests were administered randomly...
James Joyce: 140 characters? A sentence of such fractured length would have barely begun to scratch at the surface of man's vain, insignificant - James Joyce: Damn...
...quantitative forecasting, they say that the fundamentals of quantitative techniques remain intact.But at the same time, there is a new note of humility—an explicit recognition that the world is complex, formulas are imperfect, and humans are fallible.THE GREAT UNKNOWNWhile debates continue to rage over the length, severity, or causes of the financial crisis, economists have agreed on one of its effects: a renewed caution about the predictive powers of mathematics.Harvard Business School professor Robert C. Merton says that finance, unlike other subfields of economics, had never claimed to forecast the exact movements of securities prices.Merton...