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Table 1 Results from the online questionnaire

From: Using e-mail recruitment and an online questionnaire to establish effect size: A worked example

Expected consent rate without using the e-PIS 90% 80% 70% 50% 30%
Mean percentage increase experts wanted 6.9 10.7 13.5 20.2 28.9
Standard deviation 3.19 5.61 24.05 8.53 18.13
Median percentage increase wanted 9 10 11 20 25
Inter quartile range 5 5 10 17.5 30
Range of responses seen 0-10 0-20 0-30 0-50 0-70