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C.G. Jung developed his theory of psychological types over a number of years in the early part of the 20th Century, starting with extraversion –introversion, later adding the four functions or mental activities of sensation, intuition, thinking and feeling. Responses to this work occurred e.g. Hinkle (1923), before the publication of his seminal Psychological Types (1921/1923)
This presentation is a history of the different interpretations and methods associated withy Jung’s typology up to the present day. It begins with Jung’s construction of his type categories and his consequent early use in his seminars over almost two decades. This includes his views as presented by others in brief general texts e.g. Corrie (1927); Jacobi (1942), or in adult education seminars. Commentaries and applications e.g. Evans (1939); Read (1942); van der Hoop (1939), as well as the later contributions of von Franz and Hillman (1971) will be included.
The role of measurement (Gray and Wheelwright; Isabel Myers and Katharine Briggs) as a different cultural and methodological approach to Jung’s typology will be discussed, both from the perspective of developing a particular language of type from measurement results and associated texts, but also the products and orientation of instrument use and the drift to the use of the term personality type.
Influences from within and without the Jungian field will also be discussed, notably David Keirsey’s temperaments and John Beebe’s archetypal approach and David Keirsey’s Temperaments, associated with Isabel Myers’ work but not Jung’s. This presentation is intended to be a contribution to the current challenges to the plausibility of type dynamics and development.
Some attendee comments…
- “Great overview and time-line of key Jungian contributions and resources relevant to the history of type development and publications over the years.”
- “I enjoyed hearing Peter Geyer’s vast knowledge on the subject and his opinion on where type is going in the future.”
Presented by Peter Geyer

Peter Geyer [B.A.(Hons.), Dip.Ed., Grad.Dip.(Org.Beh.), M.Sc.] teaches individuals and groups about C.G.Jung’s psychological types and ideas about the self. He also researches and writes on historical, scientific and social aspects of personality from the perspective of Jung’s ideas and their measurement in the overall context of the history of ideas. His minor Masters thesis was “Quantifying Jung: The Origin and Development of the Myers–Briggs Type Indicator” (1995)
Peter taught MBTI Qualifying from 1993–2006 and MBTI Step II Workshops from 1998–2007. He has taught personality type as a visiting scholar at universities in Korea and Switzerland and as a guest lecturer in postgraduate studies at the University of South Australia.
Peter is the current Interest Area Consultant (Theory and Research) for the Association of Psychological Type (International)/APTi, also writing in the Bulletin of Psychological Type.
He is also a life member of the Australian Association for Psychological Type/AusAPT and a columnist and contributor to the Australian Psychological Type Review. Previously, Peter was an editor of the Australian Journal of Psychological Type.