Carl Jung developed his ideas from psychoanalytic theory and clinical observation.
The Myers-Briggs Type Indicator (Conley, Durlak, Shapiro, Kirsch, & Zahniser, 2016) is based on Jungian personality types and is frequently used in the occupational setting
“It is unethical, and in many cases illegal, to require job applicants to take the Indicator if the results will be used to screen out applicants.”
Rather the indicator might be used to profile individuals to help them understand their strengths and weaknesses as individuals and working within a team.
Hypothesis 3: Genes interact with our environment to shape our personality.
“instinctual drives” interact with childhood developmental experiences to shape our personality.