According
to the study by Anthony C. Little and David I. Perrett published by
the British Psychological Society in 2007 (http://www.alittlelab.stir.ac.uk/pubs/Little_07_personality_composites.pdf), there is evidence for a
measurable correlation between physical characteristics and
personality traits. In other words, physical traits can predict,
with some accuracy, personality characteristics of the individuals
that displays them, and these personality characteristics are found
with a measurable degree of consistency within individuals who bear
these physical traits.
Americans
seem more reluctant in general to accept socionics, particularly in
its European-originated VI-centric iteration. This would seem, at
least partly, to be based on the culturally instilled centrality of
the individual to American society; a society so inherently
predicated on the power and primacy of the individual personality and
will would naturally be inclined to suspicion of a personality
science that professed the ability to easily quantify persons into
relatively inflexible finite groups.