This report describes the statistical methodologies for the 2015 Workplace and Equal Opportunity Survey of Reserve Component Members (2015 WEOR). The first section describes the sample design and selection of the sample. The second section is a brief description of the survey administration issues. The third section describes weighting and variance estimation. The fourth section describes the statistical tests used by RSSC on their surveys. The final section describes the calculation of response, location, and completion rates for the full sample and population subgroups.