These results suggest that 
- The growing achievement gap can be attributed to a widening gap in academic effort 
- There's no evidence shows that the differences in cognitive ability lead to achievement gap.

Growing Gains: Asian-American Advantage in Academic Achievement

Fig. 3 
- Asian-American students performance approximate 0.2 SD higher score in academic effort.
- This difference grows to nearly a 0.4 SD gap in 10th grade.

University of Connecticut

Fig. 2
- There's almost no difference between Asians and white in cognitive abilities by test
- There's a declining trend over grade

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