Myers-Briggs Type Indicator personality assessment was developed by a mother-daughter team to apply Jungian concepts to every day life. There are 16 personality types, grouped into four temperaments. And it works!
When I started coaching in 2003, the head of HR where I had worked before launching my practice - and who gave me my first clients - suggested I start with the M-B assessment. I was skeptical at first. I have now gone over the results with hundreds of clients, family members and friends. The response at least 95 percent of time is "yes, that's me."