How to Coach Yourself and Others Essential Knowledge For Coaching | Page 262

Gordon Training International (as they are now called) clearly
originated their own version of this model in the early 1970s.
However we do not know where and when the 'conscious
competence' terminology originated, nor the origins of the 2x2
matrix presentation, and whether these aspects pre-dated of
followed GTI's work.
Prochaska and Di Clemente's stages of change model
Initially developed in the field of personal counselling and
clinical therapy during the 1980s and 90s, Prochaska and
DiClemente's personal change methodology is now a