This report describes the statistical methodologies for the 2015 Workplace and Gender Relations Survey of Reserve Component Members (2015 WGRR). The first section describes the sample design and selection of the sample. The second section describes weighting and variance estimation, as well as a comparison to the 2014 RAND Military Workplace Study. The third section describes the statistical tests used for the 2015 WGRR. The fourth section describes the calculation of location, completion, and response rates for the full sample and population subgroups. The final section contains the nonresponse bias (NRB) analysis.