DCR-4 Errata (updated July 8, 2014)
Designing Clinical Research
Fourth Edition, LWW, 2013
(S. B. Hulley, S. R. Cummings, W. S. Browner, et al.)
Page 80, equation near the bottom of the page
Replace
N = 4ZαS2 ÷ W2
with
N = 4Zα2S2 ÷ W2
Please email us to report errata.
dcr4@quesgen.com
Errata from the Third Edition (DCR-3)