The Whole Person Model draws on scientific and business literature from multiple disciplines, including management science, industrial-organizational psychology, and positive psychology, and was developed by subject-matter experts in organizational behavior, psychology, psychometrics, leadership, and adult development. The multi-phased approach to development involved a review of academic literature, item development, statistical assessment of the psychometric properties, and an independent review of the assessment by members of BetterUp’s science board. It has been validated against established assessments, predicts both individual and organizational level outcomes, and is stable over time in uncoached samples.