Robustness check Relative error check There was a significant difference between groups in the amount of online learning on Day 1 (stroke: 83.6 ± 6.5%, control: 66.7 ± 4.8%, mean difference = 16.9 ± 7.5%, 95% bootstrapped confidence interval = 2.1–32.9%, p = 0.045), but the differences in the amount of online learning on Day 2 barely missed statistical significance (stroke: 93.2 ± 6.1%, control: 78.6 ± 4.4%, mean difference = 14.6 ± 7.4%, 95% bootstrapped confidence interval = − 0.1–29.1%, p = 0.066).
1
0.0660
0.0660