1. Using personal construct psychology, these authors proposed the following definition of mental toughness: 2. In 1955, the grid was founded by George Kelly and based on his Personal Constructs theory. 3. The Repertory Grid is a mathematical way of giving meaning to your own, or other s personal constructs . 4. Personal Constructs Theory explores the individual's map they form by coping with the psychological stresses of their lives.5. Anxiety, hostility, and guilt had unique definitions and meanings in Personal Construct Theory ( Vol 1 486-534 ). 6. It is not the place of any single Wikipedia editor to impose his or her personal constructs on any article . talk) 7. The idea that the human mind might contain conceptual systems goes back at least as far as Kelly's personal construct theory in 1955. 8. Prospection, in the form of anticipation, was a central part of George Kelly's personal construct theory, first published in 1955. 9. Toward a more realistic constructivism, Advances in Personal Construct Psychology, vol . 3, pp . 37 59, London : JAI Press Inc. 10. Vaihinger s philosophy of'as if'can be viewed as one of the central premises upon which George Kelly's personal construct psychology is based.