Each stage of personal growth and development along the axis of business success has its own tasks.
So, for example, the tasks of personal growth of novice employees and specialists differ from the tasks of personal growth of experienced, seasoned managers — see the table:
So, personal growth is a quite definite and measurable reality, you just need to understand that there are different directions, different axes of personal growth. And someone advanced as a person on the axis of business turns out to be of little use in interpersonal relationships, just as a successfully self-actualizing person may not be quite ready, as a person, for the requirements of modern business.
Thus, it is hardly possible and correct to speak about the effectiveness of personal growth trainings in general terms. It is always necessary to clarify: what was the focus of the personal growth of this training: on the values of personal life? On the value of self-actualization? For business purposes? Only with such specification can the concept of «personal growth» be used operationally and responsibly.