The "Four Stages of Competence," a psychological model for learning a new skill, has been around for years. The model was developed by Gordon Training International's Noel Burch in the 1970s.
In case you're unfamiliar with the four stages, they are:
1. Unconscious incompetence. An individual does not possess a given skill and does not know that he does not possess the skill. He or she may deny that the skill is useful. The individual has to recognize his or her incompetence and acknowledge the value of the skill in order to move to the next stage. An individual will tend to remain in this stage until prompted to learn the skill.