“Other studies have also found unusual levels of persistence in even very young Asian children. For example, the cross-cultural psychologist Priscilla Blinco gave Japanese and American first graders an unsolvable puzzle to work on in solitude, without the help of other children or a teacher, and compared how long they tried before giving up. The Japanese children spent an average of 13.93 minutes on the puzzle before calling it quits, whereas the American kids spent only 9.47 minutes. Fewer than 27 percent of the American students persisted as long as the average Japanese student — and only 10 percent of the Japanese students gave up as quickly as the average American. Blinco attributes these results to the Japanese quality of persistence.”