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. 2013 Aug 27;4:550. doi: 10.3389/fpsyg.2013.00550

Table 2.

Correlations between school grades and LDST performance.

LDST quartile Grade quartile N r p
1 1 20 0.105 0.659
1 4 11 −0.25 0.448
4 1 22 0.02 0.993
4 4 29 −0.272 0.153