4.071 R.B.Cattel's
lexical approach to
individual differences
within the field of Personality
Research has already produced
evidence for the existence
of these 16 basic domains
in his article,
"Confirmation and clarification
of primary personality factors"
(Psychometrika, 1947, 12, 197-220)

Tupes and Christal's later
reduction of these 16
"surface" domains
to 5 in their article
"Recurrent personality
factors based on
trait ratings"
led to Macrae's
characterisation
of these 5 as:

Openness
Consientiousness
Extraversion
Agreeableness
Neuroticism

These 5 being
a reflection of
the underlying
deep structure
consisting of
the original
5 Mu modes

jivatmoi
jivat
d-b
atmoi
anatmoi

Eysenck's
further
reduction
of these 5
to the 3

Extraversion
Neuroticism
Psychoticism

relates
specifically
to the original
Mu triad

d-b
anatmoi
jivatmoi