Yes. the A/Z and
J/P are for all practical reasons interchangeable.
Dr. Golden
spent considerable time analyzing Isabel Myers' theoretical basis and
reconstructing Jung's writings to understand how Isabel came to the
conclusions she did. His conclusion: Think of her theory as just that..a
theory. Like Einstein's "Relativity" theory, the idea that J/P points
to the dominant function is only a theory. Isabel recognized that Jung
made very few references to this idea. He did suggest that Extraverted
Rational Types (ET and EF) are more planful and orderly. He did not
make similar statements for the Introverted Rational Types (IT and IF):
"Students of Jung will not, however, find any reference to the
JP preference in Psychological Types. Although he occasionally refers
to judging and perceptive types among extraverts, Jung never mentions
that the JP difference can be seen in introverts and that it reflects
the character of their extraversion. This omission is inevitable,
because he never discusses the introvert's extraversion."
-- Isabel Myers,
Gifts Differing (1980), pg. 22.
As Isabel Myers
recognized, Jung did not make such similar statements about the Introverted
and Extraverted Irrational Types (IS, IN, ES and EN). He strongly pointed
to the idea that the Dominant Function is more conscious than the other
functions, with the Inferior function being the most unconcious. Isabel
inferred from Jung that the behavioral outcomes of Introverted Rational
Types were as overtly organized and planful as the ET or EF types and
must therefore prefer Thinking or Feeling so much so that it is considered
to be the dominant function. She theorized that individuals who are
not obviously organized must either have the irrational function (S
or N) as dominant, or in the case of the IF or IT types, must introvert
their dominant function:
"The JP preference does not show itself in
simple and accessible reactions. It serves admirably as the fourth
dichotomy if one detail is borne in mind: it deals only withthe outward
behavior, and thus points only indirectly to the dominant process
of the introvert." --
Isabel Myers, Gifts Differing (1980), pg. 22.
Problems with this
interpretation, in Dr. Golden's opinion, include:
-1- Jung was very
clear and explicit in most of his writings. If he felt something was
important he directly said it. There is too little subject matter dealing
with these ideas for Isabel Myers to have made such a deep and affirming
theoretical prediction about the existence of a fourth dimension of
personality.
-2- In practice, i.e., working people in the real world, this theory
breaks down. Some Introverted Rational types are as clearly and observably
organized and planful as their Extraverted Rational counterparts. These
behaviors are not subordinated to the extent that they are not observable
in behavior.
-3- If Jung made so little of this, why was Myers' compelled to bring
her theory into practice? Dr. Golden believes the answer lies in her
familiarity with a test called the Humms-Wadsworth Temperament Scale
(1934). While Myers never gave a single reference to her intensive examination
of this popular instrument in 1941, it did represent her point of entry
into the field of personality theory only one year prior to the release
of the Briggs-Myers Type Instrument. Among the dimensions measured by
the Humms-Wadsworth was a scale measuring the planful versus unplanful
behavior. Many of the survey's questions related to this dimension are
similar to the item content developed by Myers. It is quite probable
that she incorporated these ideas from the item content of the Humms-Wadsworth
Temperament Scale into her first version called Form A. Of interest
is the fact that she referred to the fourth dimension as "Judging function
extraverted" vs "Perceiving function extraverted".
In summary, the
A/Z or J/P can be used to identify the dominant function because the
item content is conceptually similar. It depends most of all on whether
you find this aspect of the theory helpful and meaningful for the individual
receiving the results or in helping them overcome some psychological
obstacle through counseling. If it works for you, keep using it. In
working with well functioning adults, Dr. Golden has found that this
theory has little practical value and may often lead to greater confusion
rather than understanding.