Correction to: BMC Medical Research Methodology 10, 1 (2010)
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Following publication of the original article [1], the authors would like to correct the number of sample size in the fourth paragraph under the heading Sample Size for Pilot Studies.
The sentence currently reads:
Using a 95% CI for the proportion of eligible patients who complete the assessment form, a margin of error (ME) of 0.05, a lower bound of this CI of 0.70, and an expected completion rate of 75% based on an educated guess, the required sample for the pilot study would be at least 75 patients.
The sentence should read:
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Using a 95% CI for the proportion of eligible patients who complete the assessment form, a margin of error (ME) of 0.05, a lower bound of this CI of 0.70, and an expected completion rate of 75% based on an educated guess, the required sample for the pilot study would be at least 289 patients.
The original article [1] has been corrected.
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