W

Wallis, Wilson Allen (statistician), 141

washout intervals, 65

waves, 96, 176

weak linear relationship, 214

websites. See also G*Power; Microsoft Excel

ClinCalc, 172

Cochrane, 297

Comprehensive R Archive Network (CRAN), 58

Epi Info, 59

Graphpad, 67

International Business Machines, 57

National Health and Nutrition Examination Survey (NHANES), 82, 86, 93, 148–157

National Institutes of Health (NIH), 72–73

OpenStat and LazStats, 59

Power and Sample Size Calculation (PS), 60, 171–172, 324–325

SAS OnDemand for Academics (ODA), 55–56, 57

Social Science Statistics, 170

Statista, 34

StatPages, 158, 190, 282

weibull distribution, 330, 356–357

weight, 218–220, 225–226, 239–240, 246

Welch, Bernard Lewis (statistician), 141

Welch test, 143, 150–151

Whitney, Donald Ransom (statistician), 141

whole numbers, 107

Wilcoxon, Frank (statistician), 141

Wilcoxon SignedRanks (WSR) test,

47–49, 142, 146

Wilcoxon SumofRanks test,

47–49, 143, 157, 362

withdrawal criteria, 64

World War II, 71, 264

X