This information is derived from the seminal work Competence at Work: Models for Superior Performance (1993) by Lyle M. Spencer Jr. and Signe M. Spencer. This dictionary is the industry standard for HR professionals, organizational psychologists, and managers developing competency-based job descriptions, interview guides, and performance appraisal systems. The Spencers analyzed over 20 years of data to identify characteristics that differentiate superior performers from average performers . Their dictionary defines specific competencies and provides "behavioral indicators" for each. Brazzers Sapphire Astrea You Stole My Slut - 3.79.94.248