A technique used in management development that was devised by two American specialists in organisational psychology, Robert Blake and Jane Mouton, building on previous contributions to the study of human relations by psychologists like Argyris, Lewin and Likert. The technique consists of scoring managers on two dimensions at right angles to each other to form a grid. The dimensions are concern for production (or the task in hand) and concern for people. Each individual's scores are then plotted on this grid to see how much of each concern they express. The grid also forms the basis for a seminar exploring various aspects of the work group.