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(1) SOS is Peterson's Sexual Orientation Scale, an attempt to quantify
a person's sexual preference.  Originally it was a scale from -5 (absolute
preference for same-sex relationships) to +5 (absolute preference for
opposite-sex relationships).  However, he decided that this had two
drawbacks.  One was that it could be construed as indicating that homo-
sexuality has a negative connotation.  The other was that it allowed the
existence of a "0" value (meaning that there was no preference at all), and
Mr. Peterson does not believe that this is possible.

Therefore, he created 2 scales: 1 - 5 (5 meaning absolute preference for
opposite-sex relationships) and A - E (with E meaning absolute preference
for same-sex relationships). Therefore, "A" means a slight preference for
same-sex, and "1" means a slight preference for opposite-sex, and there is
no "0" value.

The parameters used to generate this value are not known. Apparently there
is a quasi-scientific formula used, which requires fairly specific
information about the person.  This is why most of the people listed in the
notebooks don't have a SOS rating as yet.

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