. "Transactional analysis (abbreviated to TA) is a theory in psychology that examines the interactions, or \"transactions\", between a person and other people. The underlying precept is that humans are social creatures and that a person is a multi-faceted being that changes when in contact with another person in their world. Canadian-born US psychiatrist Eric Berne developed the concept and paradigm of TA in the late 1950s."@en . .