“…If we stop thinking of professional psychology as an arcane art and examine it instead as a set of complex professional occupations, the well-tried methods for measuring and improving performance that industrial/organizational psychologists have developed over the years can be applied to practitioners in our own field. The famed "HumRRO seven steps" (Human Resources Research Organization; Crawford, 1962Crawford, , 1985, the many procedures that have been designed to assess performance of military personnel (e.g., Wigdor & Green, 1991), and Thomas Gilbert's broad-gauge behavioral methods for measuring performance at work (Gilbert, 1987) come immediately to my mind. Specialists in personnel and organizational psychology can easily think of others.…”