Power and sample size.
Hogan
J W
JW
Brown University School of Medicine, Women and Infants Hospital, Providence, Rhode Island, USA. jhogan@stat.brown.edu
Peipert
J F
JF
D003627:Data Interpretation, Statistical; D006801:Humans; D016032:Randomized Controlled Trials as Topic; D012107:Research Design; D018401:Sample Size