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Table 5 ANOVA results for effect of daily average internet use to mental effort

From: Utilizing a smart cognitive support system for K-8 education

  N Mean Standard Deviation F p
Less than 1 h 48 4.19 2.39 2.227 0.091
Between 1 and 3 h 25 4.52 2.74
Between 3 and 5 h 9 5.11 3.58
More than 5 h 7 6.86 2.47
Total 89 4.58 2.68