This was a classic correlational study examining the relationship between three test scores and the self-reported time it took a manager to be promoted to manager and thence senior manager. The study consisted of a large sample of working adults who completed three well validated tests. Over 6,000 adult managers attending an assessment center completed a battery of tests including a “bright-side” Big Five personality trait measure (Neuroticism–Extraversion–Openness Personality Inventory Revised), a “dark-side”/disorders measure (Hogan Development Survey), and an ability test (general mental ability). They also specified in detail how long it had been before they were promoted to a managerial role and also, where appropriate, to a senior managerial role. I used correlational analyses and regressions to determine the associations between promotions and certain personality traits and also considered the implications for the selection and management of people