Nevertheless, according to a study by Wu on behalf of the US Educational Testing Service, the results of research on the math part of the Scholastic Aptitude Test (SAT) for students who have taken Kumon math in Taiwan show that after the ordinary student goes through the program, a fifth grader would be at the same level as an American high school junior.
然而根據吳武典受美國教育測驗服務社（ETS）委託，針對國內功文學生參加美國 SAT-M 數學性向測驗的研究結果顯示：一般常態學生透過功文數學輔導後，小學五年級即有美國高三的數學水準。