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. 2016 Aug 8;10:397. doi: 10.3389/fnhum.2016.00397

Table 4.

Mean increase in contrast sensitivity as a function of test frequency and PATH complexity level for pooled data from traditional and year-round schools.

Test frequency Mean increase per complexity level Standard error t(22) value p value
0.25 cyc/deg 4.19% 0.59% 7.11 <0.0001
0.5 cyc/deg 7.29% 0.85% 8.56 <0.0001
1 cyc/deg 11.22% 1.54% 7.26 <0.0001
2 cyc/deg 7.83% 1.35% 5.79 <0.0001