Liberty Munson, PhD, is the Principal Psychometrician for Microsoft’s Worldwide Learning Team’s technical certification, assessment, and curriculum programs. She is responsible for ensuring that psychometric standards are rigorously applied during all phases of the assessment and exam lifecycle and that the design and implementation of these programs result in valid and reliable assessments of candidate skills. She works closely with her team to design, develop, and evaluate innovative item types, design new delivery and development methodologies, implement strategic processes to proactively address piracy issues, and ensure the quality of the skills validation content from a psychometric and candidate perspective. Prior to joining Microsoft, she worked at Boeing where she developed a wide variety of selection tests, including multiple-choice exams, team-based exercises, problem-solving activities, and structured interviews; she also assisted with the development and analysis of Boeing’s internal certification exams and acted as a co-project manager overseeing development, administration, and analysis of Boeing’s Employee Survey. She received her BS in Psychology from Iowa State University and her MA and Ph.D. in Industrial/Organizational Psychology with minors in Quantitative Psychology and Human Resource Management from the University of Illinois at Urbana-Champaign.